Best Alen in 2026

REPLACEMENT AIR FILTER: For BreatheSmart Flex & 45i Air Purifiers ONLY. Find your model number on the top panel below the power button to ensure you get the right HEPA filter for your unit. Install and breathe well-filtered air in no time.

B4-PURE FILTER: Built with fine mesh, this air purifier filter traps allergens, asthma, and other health triggers like dust, dander, pollution, aerosolized viruses, and bacteria. The frequency of filter replacement depends on air particulates present.

TRUE HEPA: 3-Stage H13 True HEPA filtration captures 99.99% of particles as small as 0.1 microns. HEPA air filtration is the third of five stages where the air filter can trap viruses, bacteria, and mold spores, not just pollens and allergens.

RECOMMENDED FOR: Dust, dander, allergens, pet fur, and odors. Sleek design fits in any space from small to large rooms.

B4-PURE FILTER: Standard filter that helps eliminate asthma and allergy triggers. All FLEX filters include an antimicrobial compound which help eliminate germs, bacteria, mold, and fungi.

TRUE HEPA: Includes a Medical Grade H13 True HEPA layer that removes 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron. True HEPA filters last 3-5 months longer than standard filters.

RECOMMENDED FOR: Capturing dust, dander, small airborne particles, pet fur, and odors. Sleek design fits in any space from small to large rooms.

B4-PURE FILTER: Standard filter that helps capture asthma and allergy triggers.

TRUE HEPA: Includes a Medical Grade H13 True HEPA layer that captures 99.99% airborne particles larger than 0.1 micron. True HEPA filters last 3-5 months longer than standard filters.

REPLACEMENT AIR FILTER: For BreatheSmart Flex & 45i Air Purifiers ONLY. Find your model number on the top panel below the power button to ensure you get the right HEPA filter. It purifies 800sqft every 30 minutes and is helpful for 9-12 months.

B4-PURE FILTER: Ideal for medium, large, and extra-large spaces, including living rooms, bedrooms, nurseries, laundry rooms, bathrooms, offices, kitchens, basements, and more! It traps allergens, pollen, fur, pet dander, mildew, and aerosolized viruses.

MEDICAL-GRADE PROTECTION: 3-Stage H13 True HEPA filtration captures 99.99% of particles as small as 0.1 microns. HEPA air filtration is the third of five stages where the air filter traps viruses, bacteria, mold spores, and smoke with activated carbon.

REPLACEMENT AIR FILTER: Our HEPA air filter replacement is specifically designed for the Alen FIT50 air purifier. Insert our air purifier filters into the FIT50 and watch it clean 900 sq. ft. of air every 30 minutes.

EFFECTIVE AIR PURIFIER FILTER: This Alen air purifier filter replacement is fantastic for better air in your home. The HEPA filter replacement features a medical-grade H13 True HEPA layer that captures 99.9% of airborne particles larger than 0.1 micron. These HEPA filters are great for capturing chemicals (VOCs), cooking odors, smoke, seasonal allergens, pollen, dust, dander, and pet fur.

GENUINE ALEN REPLACEMENT FILTERS: This high-quality air filter replacement contains an ultra-absorbent activated carbon layer that absorbs harmful airborne particles and leaves you with fresh, clean air.

REPLACEMENT AIR FILTER: Our HEPA air filter replacement is specifically designed for the Alen BreatheSmart Classic air purifier. Insert our air purifier filter into the BreatheSmart and watch it clean 1,100 sq. ft. of air every 30 minutes.

EFFECTIVE AIR PURIFIER FILTER: This Alen air purifier filter replacement is fantastic for better air in your home. The HEPA filter replacement features a medical-grade H13 True HEPA layer that captures 99.9% of airborne particles larger than 0.1 micron. These HEPA filters are great for capturing volatile organic compounds (VOC) and smoke.

GENUINE ALEN REPLACEMENT FILTERS: This high-quality air filter replacement is made with activated carbon, which effectively scrubs the air of various indoor and outdoor pollutants. It is the perfect filter for capturing smoke (especially from cooking), VOCs, pollutants, and odors from the air. It's also excellent for the capturing of dust, dander, and pollen.

REPLACEMENT AIR FILTER: Our HEPA air filter replacement is specifically designed for the Alen T500 air purifier. Insert our air purifier filters into the T500 Tower Air Purifier and watch it clean 500 sq. ft. of air every 30 minutes.

EFFECTIVE AIR PURIFIER FILTER: This Alen air purifier filter replacement is fantastic for better air in your home. The filter replacement features a layer that captures 99.9% of airborne particles down to 0.1 micron. These filters are great for capturing allergens, pollen, dust, dander, and fur.

GENUINE ALEN REPLACEMENT FILTERS: This high-quality air filter replacement scrubs the air of allergens, pollen, dust, dander, and pet fur that can be an unwanted nuisance. Experience clean air and breathe easy again!

PURE FILTER: Standard Alen True HEPA air filter for the BreatheSmart Classic air purifier captures 99.9% of airborne particles down to 0.1 micron. Traps allergens, dust, pollen, pet dander, and fur, covering areas up to 1100 SqFt every 30 minutes.

CUSTOMIZING YOUR FILTER: With Alen BreatheSmart Classic Air Purifier, you can customize the air filtration system that suits your needs. We offer air filter options with various designer front panels for our customers' unique concerns.

AIR QUALITY DISPLAY: Our Smart Sensor has a 3-color LED display that updates in real-time: Blue, Orange, and Red. When enabled, its ozone-safe ionizer, produces negative ions, which attract and clump ultra-fine particles together to trap dirty air.

Silver FILTER: Upgrade Alen True HEPA air filter for the BreatheSmart Classic air purifier. HEPA layer captures 99.9% of airborne particles down to 0.1 micron, helping to capture allergens, dust, pollen, mold, and bacteria. Activated carbon layer captures smoke and household odors within in areas up to 1100 SqFt every 30 minutes.

CUSTOMIZING YOUR FILTER: With Alen BreatheSmart Classic Air Purifier, you can customize the air filtration system that suits your needs. We offer air filter options with various designer front panels for our customers' unique concerns.

AIR QUALITY DISPLAY: Our Smart Sensor has a 3-color LED display that updates in real-time: Blue, Orange, and Red. When enabled, its ozone-safe ionizer, produces negative ions, which attract and clump ultra-fine particles together to trap dirty air.

PURE FILTER: Standard Alen True HEPA air filter for the BreatheSmart Classic air purifier captures 99.9% of airborne particles down to 0.1 micron. Traps allergens, dust, pollen, pet dander, and fur, covering areas up to 1100 SqFt every 30 minutes.

CUSTOMIZING YOUR FILTER: With Alen BreatheSmart Classic Air Purifier, you can customize the air filtration system that suits your needs. We offer air filter options with various designer front panels for our customers' unique concerns.

AIR QUALITY DISPLAY: Our Smart Sensor has a 3-color LED display that updates in real-time: Blue, Orange, and Red. When enabled, its ozone-safe ionizer, produces negative ions, which attract and clump ultra-fine particles together to trap dirty air.

Silver FILTER: Upgrade Alen True HEPA air filter for the BreatheSmart Classic air purifier. HEPA layer captures 99.9% of airborne particles down to 0.1 micron, helping to capture allergens, dust, pollen, mold, and bacteria. Activated carbon layer captures smoke and household odors within in areas up to 1100 SqFt every 30 minutes.

CUSTOMIZING YOUR FILTER: With Alen BreatheSmart Classic Air Purifier, you can customize the air filtration system that suits your needs. We offer air filter options with various designer front panels for our customers' unique concerns.

AIR QUALITY DISPLAY: Our Smart Sensor has a 3-color LED display that updates in real-time: Blue, Orange, and Red. When enabled, its ozone-safe ionizer, produces negative ions, which attract and clump ultra-fine particles together to trap dirty air.

OdorCell FILTER: UpOdorCell FILTER: Upgrade True HEPA filter captures 99.9% of airborne particles like allergens, dust, pollen, dander & fur down to 0.1 micron. Its proprietary odor powder layer neutralizes unwanted odors, covering areas up to 1100 SqFt every 30 minutes.grade True HEPA filter captures 99.9% of airborne particles like allergens, dust, pollen, dander & fur down to 0.1 micron. Its proprietary odor powder layer neutralizes odors, covering areas up to 1100 SqFt every 30 minutes.

CUSTOMIZING YOUR FILTER: With Alen BreatheSmart Classic Air Purifier, you can customize the air filtration system that suits your needs. We offer air filter options with various designer front panels for our customers' unique concerns.

AIR QUALITY DISPLAY: Our Smart Sensor has a 3-color LED display that updates in real-time: Blue, Orange, and Red. When enabled, its ozone-safe ionizer, produces negative ions, which attract and clump ultra-fine particles together to trap dirty air.

REPLACEMENT AIR FILTER: Our Silver Carbon True HEPA air filter replacement is specifically designed for the Alen FIT50 air purifier. Insert our air purifier filters into the FIT50 and watch it clean 900 sq. ft. of air every 30 minutes.

EFFECTIVE AIR PURIFIER FILTER: This Alen air purifier filter replacement is fantastic for better air in your home. The HEPA filter replacement features a 3-Stage H13 True HEPA filter that captures 99.9% of airborne particles larger than 0.1 micron. These HEPA filters are great for capturing household odors, pet dander, dust, and pollen.

GENUINE ALEN REPLACEMENT FILTERS: This high-quality air filter replacement contains an ultra-absorbent activated carbon layer that absorbs harmful airborne particles and leaves you with fresh, clean air.

RECOMMENDED FOR: Dust, dander, allergens, pet fur, odors and cleans up to 500 SqFt of air every 30 minutes on high speed

TRUE HEPA FILTER: Includes a Medical Grade H13 True HEPA layer that captures 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron AND includes a vacuumable pre-filter to help increase filter life

ANY ROOM SIZE: Fits perfect in any space from small to large rooms, living rooms, bedrooms, dorms, offices, bathrooms, nurseries, and kitchens

COMPACT AND MIGHTY: Cleans 900 SqFt every 30 minutes at a whisper-quiet level. A compact workhorse fits in any space from bedrooms, living rooms, gyms, offices, nurseries, kitchens, basements, and open concept areas.

FF50-VOC/Smoke FILTER: FIT50 air purifiers equipped with this filter have more than 3 pounds of activated carbon to help absorb smoke (including wildfire smoke) and strong odor (VOCs) that may be harmful to the respiratory system. This filtration system enables you to breathe better and consequently feel better.

TRUE HEPA: Our home air purifiers include a Medical-Grade H13 True HEPA layer that removes 99.9% airborne particles larger than 0.1 micron. These filters last up to twelve (12) months, even at twenty-four (24) hour per day operation. With our air purifier, you and your family can breathe easily.

RECOMMENDED FOR: Dust, dander, allergens, pet fur, odors and cleans up to 500 SqFt of air every 30 minutes on high speed

PURE FILTER: Standard filter that helps relieve allergy and asthma symptoms including runny nose, congestion, shortness of breath, and sneezing

TRUE HEPA FILTER: Includes a Medical Grade H13 True HEPA layer that captures 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron AND includes a vacuumable prefilter to help increase filter life

B7 PURE FILTER: Alen's Pure HEPA filter helps remove airborne allergens, dust, pollen, dust mites, dander, pet hair, mold, and more. The True HEPA filter traps potentially harmful airborne particles as tiny as 0.1 micron. This office and home air purifier can purify up to 1,300 SqFt every 30 minutes.

WIDER COVERAGE, QUIET AIR PURIFIER: Designed for extra-large rooms, the 75i is the ideal air purifier for large rooms and open-concept spaces such as living rooms and kitchens. It can purify up to 1300 SqFt every half hour while generating whisper-soft volume at the lowest setting for a quiet operation.

SMART SENSOR: The BreatheSmart 75i HEPA air purifier has a laser smart sensor that detects airborne particles and self-adjusts to better filter air. Use the AUTO mode to activate this feature and to automatically speed up or slow down the fan to filter the air.

H13 HEPA ODOR FILTER: absorbs heavy household odors, instantly destroys odors at the molecular level neutralizing unpleasant odors from taking over your home. Avoid the aftermath of stubborn food smells, dirty diapers, litter boxes, and that “less than fresh” furry friend. The Odor filter is ideal for pet owners, pet care businesses, and parents of young children or teens.

PURE AIR ANYWHERE: The BreatheSmart FLEX is compact and lightweight, making it ideal for smaller rooms throughout your home where you find you and your loves spending time. Need pure air in your home office? Nursery? Guest bedroom? FLEX has you covered.

ROOM SIZE: The BreatheSmart FLEX quietly and efficiently circulates the air in rooms up to 700 sq. ft. every 30 minutes. Perfect for kids' bedrooms, guest bedrooms, home offices, and home gyms.

COMPACT AND MIGHTY: Cleans 900 SqFt every 30 minutes at a whisper-quiet level. A compact workhorse fits in any space from bedrooms, living rooms, gyms, offices, nurseries, kitchens, basements, and open concept areas

RECOMMENDED FOR: Dust, allergens, pollen, fur, pet dander, and household odors

FF50 FILTER: Helps with congestion, coughing, sneezing, stuffy nose, and watery eyes

H13 HEPA ODOR FILTER: absorbs heavy household odors, instantly destroys odors at the molecular level neutralizing unpleasant odors from taking over your home. Avoid the aftermath of stubborn food smells, dirty diapers, litter boxes, and that “less than fresh” furry friend. The Odor filter is ideal for pet owners, pet care businesses, and parents of young children or teens.

PURE AIR ANYWHERE: The BreatheSmart FLEX is compact and lightweight, making it ideal for smaller rooms throughout your home where you find you and your loves spending time. Need pure air in your home office? Nursery? Guest bedroom? FLEX has you covered.

ROOM SIZE: The BreatheSmart FLEX quietly and efficiently circulates the air in rooms up to 700 sq. ft. every 30 minutes. Perfect for kids' bedrooms, guest bedrooms, home offices, and home gyms.

H13 HEPA VOC/SMOKE FILTER: absorbs heavy household chemicals and smoke. This filter contains a whopping 2.3 lbs of active carbon to absorb noxious gasses from smoke and other chemical vapors in your air, leaving your home fresh and your lungs healthy. The VOC/Smoke filter is ideal for cigarette smoke, wildfire prone regions and absorbing higher levels of chemicals/VOCs.

IMPROVED SLEEP: The BreatheSmart 45 is proven to improve sleep according to a peer-reviewed study by SleepScore Labs. Incredibly quiet, the 45i emits a soothing pink noise that boosts frequencies in the lower octaves, so you wake up feeling rested.

ROOM SIZE: The BreatheSmart 45i quietly and efficiently circulates the air in rooms up to 800 sq. ft. every 30 minutes. Perfect for primary bedrooms and other large bedrooms.

H13 HEPA ODOR FILTER: absorbs heavy household odors, instantly destroys odors at the molecular level neutralizing unpleasant odors from taking over your home. Avoid the aftermath of stubborn food smells, dirty diapers, litter boxes, and that “less than fresh” furry friend. The Odor filter is ideal for pet owners, pet care businesses, and parents of young children or teens.

PURE AIR ANYWHERE: The BreatheSmart FLEX is compact and lightweight, making it ideal for smaller rooms throughout your home where you find you and your loves spending time. Need pure air in your home office? Nursery? Guest bedroom? FLEX has you covered.

ROOM SIZE: The BreatheSmart FLEX quietly and efficiently circulates the air in rooms up to 700 sq. ft. every 30 minutes. Perfect for kids' bedrooms, guest bedrooms, home offices, and home gyms.

Eliminates smoke and heavy odors with patented MCP odor technology

Creates an allergy and asthma friendly environment by removing dust, pet dander, mold spores and pollen from the air

Provides pure, breathable air by capturing VOCs (Volatile Organic Compounds) from cleaning products, personal care items and other household materials

H13 HEPA ODOR FILTER: absorbs heavy household odors, instantly destroys odors at the molecular level neutralizing unpleasant odors from taking over your home. Avoid the aftermath of stubborn food smells, dirty diapers, litter boxes, and that “less than fresh” furry friend. The Odor filter is ideal for pet owners, pet care businesses, and parents of young children or teens.

PURE AIR ANYWHERE: The BreatheSmart FLEX is compact and lightweight, making it ideal for smaller rooms throughout your home where you find you and your loves spending time. Need pure air in your home office? Nursery? Guest bedroom? FLEX has you covered.

ROOM SIZE: The BreatheSmart FLEX quietly and efficiently circulates the air in rooms up to 700 sq. ft. every 30 minutes. Perfect for kids' bedrooms, guest bedrooms, home offices, and home gyms.

EXCEPTIONAL HEPA FILTRATION: Alen's FLEX-VOC/Smoke HEPA filter removes allergens, dust, pollen, dander, and has the maximum amount of carbon to absorb chemicals, wildfire smoke, VOC fumes and more, capturing particles as small as 0.1 micron. Our VOC/Smoke filter contains more than 2 pounds of carbon for the job! Purifies up to 700 SqFt every 30 min, making it the perfect air purifier for guest rooms, kids rooms, home offices, living rooms, home gyms and even kitchens.

WIDE RANGE & QUIET: Alen's FLEX air purifier is designed for medium sized rooms, operating quietly while purifying up to 700 SqFt every 30 min. Ideal for kids rooms, living rooms, home gyms, home offices and more.

LONG-LASTING FILTRATION: H13 True HEPA filter captures 99.9% of particles as small as 0.1 micron, lasting up to 9-12 months. Captures dust, mold, unwanted odor, and has maximum carbon to absorb VOC's from wildfire smoke, chemicals and other gaseous contaminants.

B4-PURE FILTER: Recommended for dust, allergens, pollen, fur, pet dander, and odors.

SLEEK DESIGN: Fits perfectly in any space from small to large rooms.

TRUE HEPA: Includes a Medical Grade H13 True HEPA layer that captures 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron. True HEPA filters last 3-5 months longer than standard filters.

B4-PURE FILTER: Recommended for dust, allergens, pollen, fur, pet dander, and odors.

SLEEK DESIGN: Fits perfectly in any space from small to large rooms.

TRUE HEPA: Includes a Medical Grade H13 True HEPA layer that captures 99.99% bacteria, aerosolized viruses, and airborne particles larger than 0.1 micron. True HEPA filters last 3-5 months longer than standard filters.

BUY WITH CONFIDENCE This genuine AprilAire 413 replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions – to optimize the performance of your AprilAire Air Purifier Model: 1410, 1610, 2140, 2400, 2410, 2416, 3410, 4400, or Space-Gard 2400 with Upgrade Kit 1413

CREATE A HEALTHIER HOME by preventing airborne allergens from circulating through the air in your home. This AprilAire 413 replacement air filter traps common allergy triggers as they pass through the MERV 13 filter including dust, pollen, mold spores, bacteria, pet dander, and dust mites.

BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the filter

PROTECT YOUR INVESTMENT: Search for B07RSZSYNC or Core300-RF for the genuine Levoit replacement filter to ensure what you're buying is worthy of your investment

CORE 300 REPLACEMENT FILTER: Exclusively designed for Levoit Core 300 air purifier to maintain its peak performance. With cost-effective price to save much cost for your all-year-round air cleaning need. It is recommended to replace filters every 6-8 months

TRUE HEPA TECHNOLOGY: Adopt True HEPA Filter with H13 grade which meets the High-Efficiency Particulate Air (HEPA) standard. It filters the fine airborne particles such as pet dander, dust mites, and pollen, effectively helping improve allergies

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog