Best Blue Hepa Filter Air Purifiers in 2026

[Auto Mode] Constantly monitoring the air quality the fan automatically adjustes to most effectively purifiy your space as needed providing a new level of clean in real time.

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.

[3-Stage Manual Fan Speed] Control your AP-1512HHS' fan manually with low, medium and high settings.

[Air Quality Indicator] Pollution sensor communicates indoor air quality in real-time. Brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. You can turn off the light for sleeping.

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced, and the pre-filter needs to be cleaned for maximum efficiency, based on how much air they have processed.

[Ultra Quiet] Ultra quiet operation with noise levels ranging from 24 dB to 53 dB.

[Warranty] 3-year Limited Manufacturer's Warranty

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.

[3-Stage Manual Fan Speed] Control your AP-1512HH's fan manually with low, medium, and high settings.

[Air Quality Indicator] Pollution sensor communicates indoor air quality in real-time. Brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. You can turn off the light for sleeping.

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced, and the pre-filter needs to be cleaned for maximum efficiency, based on how much air they have processed.

[Ultra Quiet] Ultra quiet operation with noise levels ranging from 24 dB to 53 dB.

[Timer] Schedule the unit to purify 1, 4, or 8 hours of use and conserve energy.

[Warranty] 3-year Limited Manufacturer's Warranty

Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.

Timer feature allows the machine to run 1/4/8 hours before automatically powering off.

Filter replacement indicator checks both Pre-filter and HEPA filter respectively to let users be aware of when to wash or replace the filter.

77 W power consumption and quiet operation with noise level ranging from 24. 4 dB to 53. 8 dB.

Limited manufacturer's covers any internal/functional parts for 1 year and motor and electronic parts for 3 years. Filters are excluded.

Won the Best Air Purifier of 2018 at Wirecutter and ranked 1st place at the TopTenReviews.

Power source type: Electric

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.

[3-Stage Manual Fan Speed] Control your 200M's fan manually with low, medium, and high settings.

[Air Quality Indicator] Pollution sensor communicates indoor air quality in real-time. Brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. You can turn off the light for sleeping.

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced, and the pre-filter needs to be cleaned for maximum efficiency, based on how much air they have processed.

[Ultra Quiet] Ultra quiet operation with noise levels ranging from 24 dB to 53 dB.

[Timer] Schedule the unit to purify 1, 4, or 8 hours of use and conserve energy.

[Warranty] 3-year Limited Manufacturer's Warranty

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.

[Sleep Mode] When the Airmega's built-in pollution sensor detects that the air is clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.

[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy.

[Warranty] 5-year Limited Manufacturer's Warranty

[Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality. That means your unit is energy efficient without compromising effectiveness

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected

[Sleep Mode] When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed

[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy.

[Warranty] 5-year Limited Manufacturer's Warranty

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected

[Sleep Mode] When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air is clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed

[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy

[Warranty] 5-year Limited Manufacturer's Warranty

[Rapid Mode] When air quality is in need of a boost, Rapid Mode is activated to circulate at maximum power until your air is clean

[Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality. That means your unit is energy efficient without compromising effectiveness

[3-stage Manual Fan Speed] Control your Airmega's fan manually with low, medium, and high settings

[Filter Alerts]The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy

[Warranty] 3-year Limited Manufacturer's Warranty

[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.

[Rapid Mode] When air quality is in need of a boost, Rapid Mode is activated to circulate at maximum power until your air is clean.

[Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality. That means your unit in energy efficient without compromising effectiveness.

[Filter Alerts]The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.

[EZ Release Design for Filter Care] The easy-to-clean reusable pre-filter is engineered to quickly slide out for washing and hangs on the unit to speed dry.

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy.

[Warranty] 3-year Limited Manufacturer's Warranty

Product 1: Coway Airmega 250 has six fan modes: Smart, Sleep, Low, Medium, High, and Rapid. Noise level is nearly silent at lower speeds.

Product 2: Coway Airmega 150 room air purifier is designed to accommodate room sizes up to 214 square feet.

Product 2: 3-Stage Filtration System [ Pre-filter (Washable) + Deodorization filter + Green True HEPA filter] captures and reduces up to 99.97% of 0.3 micron particles in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds and reduces odor.

Product 2: Pollution sensor communicates indoor air quality in real-time. Brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. Also features a filter-lifetime indicator and notifies users when to replace them.

Product 2: Energy efficient air purifier with 3-stage selection of fan speeds plus Auto mode. Auto mode automatically optimizes the fan speed based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and enters low-noise mode.

Product 1: Coway Airmega has five fan modes: Smart, Sleep, Low, Medium and High. Noise level is nearly silent at lower speeds. Max noise at highest setting is 43.2 dB.

Product 2: Coway Airmega 400 room air purifier is designed to accommodate large room sizes up to 1,560 square feet and cleans the air at least two times per hour when used as recommended.

Product 2: Coway Airmega Max2 filter-a combined activated carbon and a True HEPA filter-captures and reduces up to 99.99 percent of particles 0.01 microns in the air, including pollen, pollutants and other allergens. It also reduces more than 99 percent of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.

Product 2: Coway Airmega’s pollution sensor communicates indoor air quality testing in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is, every minute of the day.

Product 2: Coway Airmega has five fan modes: Smart, Sleep, Low, Medium and High. Noise level is nearly silent at lower speeds. Max noise at highest setting is 43.2 dB.

[Eco Mdoe] When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.

[Sleep Mode] When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.

[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.

[Filter Alerts] The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.

[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy.

[Warranty] 5-year Limited Manufacturer's Warranty

4 air changes/hr.** 780 ft² (72 m²)