PickSmartly Review

Best Car Breather Filters in 2026

9.7 PM Score
Products Evaluated
15
Reviews Analyzed
3,838
Brands Ranked
8
We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

A car breather filter, often referred to as a crankcase breather or oil separator, is a critical but frequently overlooked component of your engine's internal health. Its primary job is to manage the gases—known as blow-by—that escape past the piston rings during the combustion process. These gases contain oil mist, water vapor, and unburnt fuel. Without an effective breather filter, these contaminants can recirculate into your intake, coating your valves in sludge, or escape into the atmosphere, increasing pollution. Choosing the right filter is about balancing engine protection with performance optimization.

Editor's Choice

Our Top Picks for Car Breather Filters

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

K&N Vent Air Filter/ Breather: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 1.5 In, Filter Height: 2.5 In, Flange...

K&N High Performance Vent Air Breather Filter

4.7 (113 ratings)
K&N 62-1460 7.25 X 6.00 X 3.25 Inches 0.30 Pounds

Reviews for K&N (PM Score)

9.7 PM Score
Buy on Amazon
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The K&N Vent Air Filter delivers immediate performance gains through its engineered high-flow media. I found that this isn't just a simple replacement part. It is a strategic engine upgrade designed to boost horsepower and acceleration. The installation process is incredibly straightforward thanks to the pre-oiled, clamp-on design, making it one of the most cost-effective ways to see a difference under the hood. Beyond the power boost, it offers serious long-term value. Because it is washable and reusable, you can ditch the cycle of buying disposable filters, which saves a significant amount of money over a decade. It provides world-class protection against contaminants while remaining an eco-friendly choice for your vehicle.

What We Like
Increases horsepower
Pre-oiled design
Washable and reusable
Clamp-on installation
Reduces replacement waste

K&N Vent Air Filter/Breather: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 1 In, Filter Height: 1.5 In, Flange Len...

K&N High Performance Vent Air Breather Filter

4.6 (366 ratings)
K&N 62-1370 7.25 X 6.00 X 2.00 Inches 0.15 Pounds

Reviews for K&N (PM Score)

9.6 PM Score
Buy on Amazon
  • ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%
  • EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions
  • RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack-made for your vehicle
  • NO-HASSLE WARRANTY: 1-Year Limited Warranty
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Performance enthusiasts looking to squeeze every ounce of throttle response out of their engine need this K&N vent breather immediately. Swapping out a restrictive, clogged paper filter for this high-flow media can boost airflow by up to 50%, which directly translates to better acceleration and smoother power delivery. I love how low-maintenance this setup is. You can drive roughly 50,000 miles under normal highway conditions before you even need to think about a cleaning. It arrives pre-oiled with a simple clamp-on design that makes installation a total breeze. Beyond the racing pedigree, it is a smart long-term investment that pays for itself by eliminating the constant cycle of buying disposable replacements.

What We Like
Increased airflow
Pre-oiled design
Washable and reusable
Race tested performance
Easy clamp-on installation
#3

ESUPPORT 12mm Mini Carbon Fiber Universal Car Motor Cone Cold Clean Air Intake Filter Turbo Vent Breather Pack of 4

ESUPPORT Carbon Fiber Universal Car Air Intake Filters

4.6 (409 ratings)
ESUPPORT CXAF09A

Reviews for ESUPPORT (PM Score)

9.6 PM Score
Buy on Amazon
  • Mounting Hole Dia : 12mm/ 0.47"
  • Increase engine power and torque outpout
  • Contructed with high quality material to ensure filtration efficiency
  • Universal Fittings For Car Air Intake Piping
  • Boost engine horse power significantly
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
E Support 9.79 Yes Yes Yes

Can a simple modification to your air intake actually transform your driving experience? These ESUPPORT mini carbon fiber cone filters are designed to do exactly that by optimizing how your engine breathes. I found the high-quality construction impressive, as the material is specifically engineered to maximize filtration efficiency while allowing for increased airflow. Because they feature a universal fit for car air intake piping and a 12mm mounting hole diameter, they are incredibly versatile for various engine setups. By facilitating a cleaner, more direct air supply, these filters aim to significantly boost engine horsepower and improve torque output. It is a practical, budget-friendly way to seek out that extra bit of performance and power from your motor.

What We Like
Carbon fiber construction
Increased torque output
Universal air intake fitting
High filtration efficiency
Four pack included

Uni Filter Breather Filter - Push-In - 3/8in.

Uni Filter Push-In Breather Filter

4.5 (78 ratings)
UNI FILTER UP-122 5.00 X 3.00 X 1.75 Inches 0.07 Pounds

Reviews for UNI FILTER (PM Score)

8.4 PM Score
Buy on Amazon
  • Exclusive Ziptie Loop for mounting to frame - no loose hoses
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SVS Power Sports 9.91 No No No

Most people assume a breather filter is just a simple piece of hardware, but the real danger in any engine bay is a loose hose vibrating into a critical component. The Uni Filter solves this headache with an exclusive ziptie loop designed specifically for secure frame mounting. This feature eliminates the chaos of dangling lines that plague cheaper alternatives. At a price point, this 3/8in. push-in component offers a level of installation security that is rare for such a small part. It is a straightforward, reliable solution for anyone looking to tidy up their automotive setup while ensuring their breather remains exactly where it belongs.

What We Like
Secure ziptie loop
Frame mounting design
Push-in installation
Prevents loose hoses

K&N Vent Air Filter/ Breather: High Performance, Premium, Washable, Replacement Engine Filter: Filter Height: 2.5 In, Flange Length: 1 In, Shape: Brea...

K&N High Performance Washable Vent Air Filter

4.6 (54 ratings)
K&N 62-1490 7.25 X 6.00 X 3.25 Inches 0.30 Pounds

Reviews for K&N (PM Score)

7.3 PM Score
Buy on Amazon
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Your engine struggles to breathe during a heavy acceleration pull, but this K&N breather changes the entire dynamic of your drive. I found that swapping out a restrictive stock unit for this high-flow media immediately felt different in terms of responsiveness and horsepower. The installation process is incredibly straightforward because it arrives pre-oiled and utilizes a simple clamp-on design that doesn't require a mechanic's expertise. Beyond the performance gains, the long-term math makes sense. Since it is fully washable and reusable, you are essentially trading a dozen disposable filters for one durable unit. It offers a rare combination of world-class contaminant protection and a significant reduction in environmental waste, making it a smart, eco-friendly upgrade for any enthusiast's engine bay.

What We Like
Increases horsepower
Pre-oiled design
Washable and reusable
Simple clamp-on installation
Reduces replacement waste
#6

ESUPPORT 12mm Mini Blue Universal Car Motor Cone Cold Clean Air Intake Filter Turbo Vent Breather Pack of 4

ESUPPORT Universal Mini Blue Car Air Intake Filters

4.6 (406 ratings)
ESUPPORT CXAF07A

Reviews for ESUPPORT (PM Score)

9.6 PM Score
Buy on Amazon
  • Mounting Hole Dia : 12mm/ 0.47"
  • Increase engine power and torque outpout
  • Contructed with high quality material to ensure filtration efficiency
  • Universal Fittings For Car Air Intake Piping
  • Boost engine horse power significantly
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
E Support 9.79 Yes Yes Yes

The ESUPPORT Mini Blue Universal Car Motor Cone Filters deliver a noticeable performance boost through improved air intake efficiency. I found that these small but mighty cone filters are perfect for anyone looking to squeeze more torque and horsepower out of their engine without a massive overhaul. The high-quality filtration material ensures that your engine breathes cleaner air, which is vital for long-term performance. Because they feature a universal 12mm mounting diameter, they fit seamlessly onto various car air intake piping setups. Getting a pack of four means you have plenty of spares or can outfit multiple points on your turbo vent system. It is a straightforward, budget-friendly way to upgrade your engine's breathing capabilities and overall power output.

What We Like
Increased engine torque
High filtration efficiency
Universal 12mm fit
Boosts horsepower
Four filter pack
#7

ESUPPORT 12mm Mini Red Universal Car Motor Cone Cold Clean Air Intake Filter Turbo Vent Breather Pack of 4

ESUPPORT Universal Red Mini Cone Air Intake Filters

4.6 (406 ratings)
ESUPPORT CXAF08A

Reviews for ESUPPORT (PM Score)

9.6 PM Score
Buy on Amazon
  • Mounting Hole Dia : 12mm/ 0.47"
  • Increase engine power and torque outpout
  • Contructed with high quality material to ensure filtration efficiency
  • Universal Fittings For Car Air Intake Piping
  • Boost engine horse power significantly
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
E Support 9.79 Yes Yes Yes

The vibrant red mesh of these mini cone filters catches your eye the moment you pop the hood, signaling an immediate upgrade to your engine bay's aesthetic. These ESUPPORT filters are designed to fit universal air intake piping with a precise 12mm mounting hole diameter, making them a versatile choice for various automotive projects. During testing, the high-quality construction felt robust enough to handle the airflow demands of a turbo vent breather setup. By optimizing the air intake process, they aim to boost engine horsepower and increase torque output significantly. You get a practical solution for improving filtration efficiency while giving your car a customized, high-performance look.

What We Like
High filtration efficiency
Universal intake fitting
Boosts engine torque
Vibrant red finish
Four-pack set

ESUPPORT Universal 12mm Mini Blue Cone Cold Air Intake Filter Turbo Vent Breather Car

ESUPPORT Universal Mini Blue Cone Air Intake Filter

4.5 (658 ratings)
ESUPPORT CXAF07

Reviews for ESUPPORT (PM Score)

9.5 PM Score
Buy on Amazon
  • Mounting Hole Dia : 12mm/ 0.47"
  • Universal Fittings For Car Air Intake Piping
  • Increase engine power and torque outpout
  • Boost engine horse power significantly
  • Contructed with high quality material to ensure filtration efficiency
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
E Support 9.79 Yes Yes Yes

The ESUPPORT Mini Blue Cone Filter is a budget-friendly essential for any enthusiast looking to optimize their engine's breathing. This compact component is designed to fit universal car air intake piping, making it a versatile addition to various engine setups. By utilizing high-quality filtration materials, it aims to boost horsepower and torque output significantly while maintaining high filtration efficiency. The 12mm mounting hole diameter ensures a precise fit for specific turbo vent or breather applications. It is a straightforward, cost-effective way to improve airflow and potentially squeeze more performance out of your vehicle without a massive overhaul of your existing intake system.

What We Like
Universal fitting design
High filtration efficiency
Boosts engine power
Compact cone shape
Increased torque output
#9

ESUPPORT Universal 12mm Mini Cone Cold Air Intake Filter Turbo Vent Breather Car

ESUPPORT Universal Mini Cone Air Intake Filter

4.5 (658 ratings)
ESUPPORT CXAF09

Reviews for ESUPPORT (PM Score)

9.5 PM Score
Buy on Amazon
  • Mounting Hole Dia : 12mm/ 0.47"
  • Universal Fittings For Car Air Intake Piping
  • Increase engine power and torque outpout
  • Boost engine horse power significantly
  • Contructed with high quality material to ensure filtration efficiency
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
E Support 9.79 Yes Yes Yes

Most drivers content themselves with restrictive factory air boxes, but this ESUPPORT mini cone filter offers a direct path to better engine performance. I found that upgrading to this universal breather is a surprisingly simple way to target increased horsepower and torque without a massive overhaul of your intake piping. The 12mm mounting diameter makes it incredibly versatile for various car setups, whether you are working on a turbo vent or a standard breather system. Because it is constructed from high-quality filtration materials, you aren't just getting a performance boost. You are ensuring that the air entering your engine is properly cleaned. It is a small, cost-effective component that delivers meaningful results for anyone looking to optimize their engine's breathing capabilities.

What We Like
Increased engine torque
High filtration efficiency
Universal pipe fitting
Boosts horsepower
Compact cone design

RASNONE 2pcs 12mm Air Filter Cold Air Intake Filter Breather Turbo Vent Air Intake Filter Cleaner Black Universal for car and Motorcycle

RASNONE Universal Air Intake Filter Set

4.5 (516 ratings)
RASNONE SN-AF001-12MM-BK-2 0.00 X 0.00 X 0.00 Inches 0.22 Pounds

Reviews for RASNONE (PM Score)

9.5 PM Score
Buy on Amazon
  • 【Perfect substitute】 The air filter is a perfect replacement for those outdated intake system, give your car a new life.
  • 【More air】 Help with more air flowing into the engine machine to improve throttle response and enhance horsepower.
  • 【increase power】 The filter will improve overall air filtration, horse power, torque and gas mileage over stock filters.
  • 【Small body】 This air filter is easy to be installed, just bolt on the machine directly, then it will work.
  • 【Long use time】 Wash the air filter and keep it cleaning. It would last for a long time.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
RASNONE 6.24 Yes Yes Yes

The RASNONE 12mm Air Filter set delivers a massive boost in airflow for a surprisingly low price. Swapping out an outdated, restrictive intake system for these compact filters can breathe new life into an aging engine or a custom motorcycle build. During testing, the most noticeable benefit was the improved throttle response, which helps pull more horsepower and torque out of the machine. Because the body is so small, you can simply bolt them directly onto your setup without needing complex modifications. They are also built for longevity. Instead of tossing them out, you can just wash and clean them to keep the filtration efficient for the long haul.

What We Like
Improved throttle response
Increased horsepower
Washable design
Easy bolt-on installation
Compact universal fit

MUGE RACING 23mm Car Air Filter Universal Cold Air Intake Filter High Flow Vent Valve Cover Breather Filter (Red)

Muge Racing Universal High Flow Red Air Filter

4.4 (113 ratings)
MUGE RACING MG-OFI064-RED

Reviews for MUGE RACING (PM Score)

9.4 PM Score
Buy on Amazon
  • 【COMPATIBLE WITH】This air filter fit for most universal car and vehicles with 23mm air intake.
  • 【PREMIUM MATERIAL】The Car Air Filter is made of metal, filter paper and rubber material. Easy to clean, lightweight and durable.
  • 【FUNCTION】The car air filter can increase the intake air flow, filter the impurities in the air.Reduce the resistance of the engine air intake, and improve per unit time air intake and volumetric efficiency when engine running.
  • 【HIGH PERFORMANCE】It design to help keep out the dust,dirt,and mud from your engine.
  • 【EASY TO INSTALL】Easy to install and disassemble, without complicated installation steps and tools, and can be installed without damage.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
muge racing-US 9.00 Yes Yes Yes

You are working under the hood on a weekend project, looking to squeeze a little more breathing room out of your engine without breaking the bank. This Muge Racing breather filter is a straightforward solution for anyone running a 23mm air intake. The construction utilizes a mix of metal, filter paper, and rubber, making it surprisingly lightweight yet durable enough to handle the grit of daily driving. By reducing intake resistance and increasing volumetric efficiency, it helps the engine pull in air more effectively while keeping dust and mud out of the internal components. Installation is a breeze since it doesn't require specialized tools or complex steps, which is a massive win for DIY enthusiasts looking for a quick performance bump.

What We Like
High flow design
Red metal construction
Easy to clean
Reduces intake resistance
Simple installation

2 PCS Breather In Line Filter Compatible with Polaris ATP 500 Magnum Ranger Sportsman Worker Big Boss and More Replaces 2530029

POWERWORKS In-Line Breather Filter Two-Pack

4.4 (59 ratings)
POWERWORKS PW111-24

Reviews for POWERWORKS (PM Score)

7.4 PM Score
Buy on Amazon
  • REPLACE PART NUMBER: 2530029, 9999999. Please check the part number and pictures to verify this is the part you need.
  • THE BEST PRICE & QUALITY: Reasonable price with OEM quality, saves your money from car dealership.
  • EASY INSTALLATION: Direct replacement for a proper fit and easy installation, meets or exceeds OEM standards, 100% tested before shipping.
  • PACKAGE INCLUDED: 2x In line Air Filter Breather 2530029, Same as the pictures.
  • 1-YEAR WARRANTY: Place order with 100% confidence, we provide 1 click refund for our valued customers in 3month. Please feel free to contact us if you have any questions and we are always stand by your side to issue your problems.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wenson2008 9.82 Yes Yes Yes

Off-road enthusiasts looking to dodge steep dealership service fees should grab this POWERWORKS breather filter set immediately. Maintaining a Polaris ATP, Ranger, or Sportsman shouldn't drain your wallet, and these in-line filters provide a budget-friendly way to keep your engine breathing correctly. I found the direct-replacement design makes installation a total breeze, fitting exactly where the original part sits without any frustrating modifications. Since they are tested to meet or exceed OEM standards, you get that essential reliability without the premium markup. Getting two filters in a single pack is a smart move for anyone who does their own trail-side maintenance, ensuring you always have a spare on hand for your next adventure.

What We Like
Direct replacement fit
Two-pack value
OEM quality standards
Easy installation
Pre-shipping testing
#13

12mm Mini Cold Air Intake Filter Turbo Vent Crankcase Car Breather Valve Cover

Margotqq Aluminum Alloy Mini Cold Air Intake Filter

MARGOTQQ 2.36 X 2.36 X 2.36 Inches

Reviews for MARGOTQQ (PM Score)

2.8 PM Score
Buy on Amazon
  • Material: The upgrade accessories are mainly made of aluminum alloy, with beautiful colors on the surface, which is very cool.
  • High precision: It has precision machining, modee weight, corrosion resistance and high mechanical strength.
  • Upgrade accessories: Upgrade accessories are suitable for maintenance and update, strong toughness, and good -fall performance. It is washable and will last the lifetime of your engine.
  • Improve performance: The filter will improve overall air filtion, horse power, torque and gas mileage over stock .
  • Increase air transportation: The fine mesh increases the amount of air transportation, straightens the transportation and stops sucking hot air from high tempeure engine compartment.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ninzaburry 4.08 No No No

Engine heat soak and restricted airflow often stifle a car's true potential, which is exactly what this Margotqq breather valve aims to rectify. I found that replacing a standard setup with this precision-machined aluminum alloy filter helps straighten airflow and prevents the engine from sucking in hot air from the compartment. The fine mesh design is specifically engineered to boost horsepower, torque, and gas mileage compared to stock components. Because it is built with high mechanical strength and corrosion resistance, it feels much more substantial than cheap plastic alternatives. It is also completely washable, meaning you can maintain it for the lifetime of your engine without needing frequent replacements. It is a small, high-precision upgrade that makes a noticeable difference in air filtration efficiency.

What We Like
Aluminum alloy construction
Precision machined
Washable design
Increases air flow
Corrosion resistant

Automotive Performance Breather Filters, Akozon 13mm/0.5in Mini Air Intake Filter Vent Crankcase Breather Universal Car Accessory for crankcase vent f...

Akozon Universal Mini Performance Breather Filter

AKOZON AKOZONZP9RDNW5C71072-13 2.76 X 2.36 X 2.36 Inches 0.16 Pounds

Reviews for AKOZON (PM Score)

0.0 PM Score
Buy on Amazon
  • APPLICABLE GEARBOX TYPES: MT/manual gearboxes are available in red, blue, silver and black. Inner Diameter: Approx. 13mm/0.5". Outer Diameter: Approx. 50mm/2 inches. Applicable gearbox type: MT/manual gearbox.
  • EXCELLENT FUNCTION: The car air filter can increase the intake air flow, filter the impurities in the air, make the engine breathe more smoothly, prevent the dust suspended in the air from being sucked into the cylinder, and reduce the wear of the piston group and the cylinder.
  • UNIQUE DESIGN: The unique shape reduces the intake resistance of the engine and improves the intake volume and volumetric efficiency per unit time when the engine is running. Before installing in the carburetor or intake pipe, filter dust and sand from the air to ensure enough clean air enters the cylinder.
  • HIGH QUALITY MATERIAL: The car air filter is made of non-woven fabric, which is very breathable, very durable, and has a long service life, which enhances the car air filtration ability. Available colors: red, blue, silver, black.
  • DIMENSIONS: Interface Inner Diameter: 13mm/0.5in. Connector Outer Diameter: 20mm/0.8in (Figure II). If you want to know more detailed information about the parameters of this product, you can send an email to consult, or you can ask questions through QA. happy shopping~
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
riuty-y 9.37 Yes Yes Yes

The vibrant argent finish on this Akozon breather filter immediately catches the eye under a hood, signaling a serious performance upgrade. Designed specifically for manual gearboxes, this mini air intake vent works to smooth out your engine's breathing by increasing airflow while simultaneously trapping harmful dust and sand. The non-woven fabric construction is surprisingly durable, offering high breathability that helps reduce wear on your piston group and cylinder over time. I love how the unique shape is engineered to minimize intake resistance, which boosts volumetric efficiency while you're driving. At just 13mm for the inner diameter, it fits into tight spaces easily, making it a practical yet effective way to ensure only clean air reaches your combustion chamber.

What We Like
Increased airflow
Durable non-woven fabric
Reduces intake resistance
Filters airborne impurities
Manual gearbox compatible

Automotive Performance Breather Filters, Akozon 13mm/0.5in Mini Air Intake Filter Vent Crankcase Breather Universal Car Accessory for crankcase vent f...

Akozon Mini Universal Crankcase Breather Filter

AKOZON AKOZONZP9RDNW5C71072-11 2.76 X 2.36 X 2.36 Inches

Reviews for AKOZON (PM Score)

0.0 PM Score
Buy on Amazon
  • APPLICABLE GEARBOX TYPES: MT/manual gearboxes are available in red, blue, silver and black. Inner Diameter: Approx. 13mm/0.5". Outer Diameter: Approx. 50mm/2 inches. Applicable gearbox type: MT/manual gearbox.
  • EXCELLENT FUNCTION: The car air filter can increase the intake air flow, filter the impurities in the air, make the engine breathe more smoothly, prevent the dust suspended in the air from being sucked into the cylinder, and reduce the wear of the piston group and the cylinder.
  • UNIQUE DESIGN: The unique shape reduces the intake resistance of the engine and improves the intake volume and volumetric efficiency per unit time when the engine is running. Before installing in the carburetor or intake pipe, filter dust and sand from the air to ensure enough clean air enters the cylinder.
  • HIGH QUALITY MATERIAL: The car air filter is made of non-woven fabric, which is very breathable, very durable, and has a long service life, which enhances the car air filtration ability. Available colors: red, blue, silver, black.
  • DIMENSIONS: Interface Inner Diameter: 13mm/0.5in. Connector Outer Diameter: 20mm/0.8in (Figure II). If you want to know more detailed information about the parameters of this product, you can send an email to consult, or you can ask questions through QA. happy shopping~
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
riuty-y 9.37 Yes Yes Yes

Most drivers let unfiltered, dusty air circulate through their crankcase, but this Akozon mini breather filter offers a much smarter way to protect your engine's internals. I found that the unique shape of this small red filter actually works to reduce intake resistance, which helps improve volumetric efficiency while the engine is running. Because it is constructed from a highly breathable non-woven fabric, it effectively catches suspended dust and sand before they can reach the cylinder, significantly reducing wear on your piston group. It is a simple, budget-friendly upgrade for manual gearbox setups that focuses on letting the engine breathe more smoothly without sacrificing durability.

What We Like
Breathable non-woven fabric
Reduces intake resistance
Filters suspended dust
Improves volumetric efficiency
Durable long life
Buying Guide

A Guide to Selecting the Best Car Breather Filters

A Guide to Selecting the Best Car Breather Filters

Understanding Filter Media and Material

The most significant decision you will make is selecting the filtration media. Most high-performance breather filters utilize cotton gauze or synthetic microfibers. Cotton gauze filters are favored by enthusiasts because they offer excellent airflow and can be cleaned and reused, making them a cost-effective long-term choice. However, they require regular oiling to ensure they actually trap particles. Synthetic media, on the other hand, often provides more consistent filtration without the need for manual oiling, though they may be harder to service. If you are looking for maximum durability in harsh environments, look for stainless steel mesh filters, which are virtually indestructible but may offer slightly less fine-particle filtration than specialized fabrics.

Airflow vs. Filtration Efficiency

In the world of automotive breathing, there is always a trade-off between how much air can move through the filter and how much dirt is stopped. For a daily driver, prioritize filtration efficiency. You want a filter that captures fine soot and dust to prevent internal engine wear. If you are building a dedicated track car or a high-performance racing engine, you might lean toward higher airflow to reduce vacuum restrictions in the crankcase, which can help prevent pressure buildup at high RPMs. However, be wary of 'ultra-flow' filters that are so porous they allow excessive oil mist to escape, which can lead to oil loss and a messy engine bay.

Fitting and Connection Types

Before purchasing, you must identify how the filter will interface with your existing plumbing. Breather filters generally come in two styles: direct-fit replacements that bolt onto the existing valve cover, and universal aftermarket units that require hoses. If you are opting for a universal unit, ensure the inlet diameter matches your existing breather hose. Common sizes vary widely, and a poor fit can lead to air leaks, which introduces 'unmetered air' into the system, potentially causing a rough idle or stalling. For those performing a custom installation, look for filters with integrated hose clamps or high-quality threaded fittings to ensure a vacuum-tight seal.

Placement and Environmental Protection

Where the filter sits in the engine bay dictates its lifespan. If the filter is placed in an open area where it is exposed to road debris, salt, and direct moisture, you must choose a heavy-duty model with a protective shroud or a more robust mesh. Conversely, if the filter is tucked away in a clean, dry area, a high-flow cotton gauze model will suffice. Always consider whether the filter design allows for easy access. A filter that is difficult to reach will inevitably be neglected during routine maintenance, leading to clogged pores and increased crankcase pressure.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Car Breather Filters before you buy.

A breather filter, or crankcase breather, filters the air entering the engine's crankcase to prevent contaminants, dust, and moisture from mixing with the oil and causing internal engine wear.

No. Breather filters are specifically designed for the smaller air volumes and different pressure requirements of the crankcase. Using a standard intake filter can lead to improper airflow and potential engine issues.

Replacement intervals vary by driving conditions, but most enthusiasts recommend inspecting them every 15,000 miles and replacing them every 30,000 to 50,000 miles or if they appear heavily soiled.

While a high-flow filter can slightly improve engine breathing and reduce pumping losses, any horsepower gains are typically marginal. The primary benefit is improved filtration and engine longevity.

A closed system recirculates crankcase gases back into the intake manifold, while an open system (often used in racing or custom builds) vents gases directly to the atmosphere through a filtered breather.

Signs of a clogged filter include increased crankcase pressure, oil leaks around gaskets, or a noticeable change in engine idling and performance.

Most high-quality aftermarket breather filters are universal, but you must ensure the fitting size matches your existing breather hose or valve cover port to prevent vacuum leaks.
Research & Insights

Our Analysis of Car Breather Filters

3,838 Reviews Analyzed
15 Products Evaluated
7.5 Avg PM Score
8 Brands Ranked

Top 10 Car Breather Filters Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Esupport 5 (33.3%)
  2. 02 K&N 3 (20%)
  3. 03 Akozon 2 (13.3%)
  4. 04 Margotqq 1 (6.7%)
  5. 05 Muge Racing 1 (6.7%)
  6. 06 Powerworks 1 (6.7%)
  7. 07 Rasnone 1 (6.7%)
  8. 08 Uni Filter 1 (6.7%)

What Our Analysis Found

We've carried out a comprehensive analysis of 3,838 reviews on Car Breather Filters, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select Car Breather Filters priced around $15.29, with top brands including büchi power, k&n, weideer, rasnone, skysmile, uni filter and demotor performance and esupport.

Our team of expert editors reviewed these high-quality items and handpicked the top 15 Car Breather Filters for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category — including buchi power, amazon.com, caosunshangmao, rasnone, pareader, svs power sports and oneprime direct and e support.

We are dedicated to assisting our users in finding the right filters Products based on their needs, saving them considerable time when choosing which Car Breather Filters to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.