The airmega 400 is rated to clean up to 1 560 square feet and cycles all the air in that space twice per hour but in a room half as big its high efficiency particulate air hepa filters cycle.
Best small room hepa air filter.
240 to 180 very good.
This means the filter is like a true hepa filter in design but has a lower efficiency.
5 2020 7 56 pm utc.
179 to 120 good.
The blue pure 211 is highly rated for its solid performance in removing dust smoke and pollen from room air.
Its activated carbon and hepa filters capture 99 97 of allergens and pollutants as small as 0 3 microns and air multiplier technology projects purified humidified air throughout the room.
If you are looking for the best small air purifier these are some best of them our picks.
If you want to purify the air for a smaller room small office dorm room hotel room or car portable small air purifiers might be a useful solution to lessen allergens.
In room air purifiers we see some air purifier filters referred to as a hepa type filter.
In our tests a cadr above 240 gets an excellent rating.
Top 10 small portable air purifier reviews 2020.
Portable air purifiers with hepa filters often achieve the highest cadr.
This nasa study of hepa filtration is quite technical but the graph on page 7 and the preceding paragraph do a good job of explaining why hepa filters are actually most efficient almost 100 at.
A hepa type filter is not rated to remove the smallest airborne particles.
Honeywell april 14 2020 5 08 pm utc updated aug.
The dyson pure humidify cool is a multi functional machine for whole room air treatment it purifies humidifies and cools you.
119 to 60 fair.
Although expensive hepa filter air purifiers keep recycled air clean inside small enclosed spaces and we ve lined up the retailers along with featured products that best fit that bill below.