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coway airmega air purifier in bedroom next to bed

The best air purifier for a bedroom: Coway AP-1512HH and Airmega 150

Why use an air purifier in the bedroom?

Science already tells us that we sleep better in purer air. In fact, some of your sleep trouble may be caused by air pollution. All of that is to say, adding a purifier to your bedroom could be a serious game-changer, and allow you to get some much-needed REM sleep, uninterrupted by pollutants in your air.

What makes the perfect air purifier for a bedroom?

For sleeping, you want less noise, and a low setting or Auto Mode that lets you dream without having to adjust the fan yourself. Combining all of that with advanced, effective purification with HEPA technology, you’re in for the kind of clean air that will let you stay in dreamland as long as your body needs. Finally, you’ll want to find a smaller purifier to fit in your bedroom, and match your aesthetic. Meeting and exceeding all these standards are the Coway AP-1512HH/AP-1512HHS (already awarded “Top Pick” for air purifiers 5 years in a row by Wirecutter Magazine ) and the latest purifier on the scene: the Coway Airmega 150.

Effective Purification

HEPA technology is the highest standard for air purification in the world. The Airmega 150 uses a combination of a pre-filter, deodorization filter, and Coway Green True HEPA™ Filter, which efficiently filters harmful sources in your space and removes more than 99.999%* of nano-sized particles down to 0.01 microns—smaller than most viruses and bacteria. The tiny 18-inch purifier uses this technology with an impressive 214 square feet of effective coverage. The slightly larger AP-1512HH/AP-1512HHS has the same effectiveness in rooms up to 361 square feet.

Less Noise

Coway’s advanced filtration technology is designed to be as quiet as possible—perfect for a nursery, bedroom, or any room where sleeping takes place. On low, the Airmega 150 emits a noise level of only 19.98 db—you can barely notice the sound that is produced by the fan, although it’s still circulating the entirety of air in your room.

Auto Mode

Both the Airmega 150 and AP-1512HH feature an auto-mode that keeps the purifier on only when needed, so you don’t have to turn the fan on or off yourself. If you’d rather have one fan speed on through the night, there is a low setting for that, as well. Upgrade to the AP-1512HHS with enabled wifi, and you can even change the unit’s settings from your bed with the smartphone app.

LED Lights that can turn off

If you want complete darkness in your room, the Airmega 150’s LED indicator lights will turn on and off by your preference.

So, it comes down to room size, aesthetic and personal preference

For larger bedrooms, the AP-1512HH gives powerful purification up to 361 square feet with a nice quiet fan, and auto mode. For a smaller space, or those who prefer the lights off function, the 18.5” tall Airmega 150 gives coverage up to a 214-square-foot bedroom. Both purifiers are designed with modern, sleek lines to match the aesthetic of any bedroom.

Learn more about Airmega.

Learn more about the AP-1512HH.

Learn more about the Airmega 150

*Coway air purifiers have been tested according to the Korea Air Cleaning Association standard on a particle size of below 0.01㎛ and on maximum fan speed in normal room temperature and humidity conditions. According to Airmega 250’s test report, 99.999% of 0.01㎛ particles are removed within 12 minutes. (Tested with Airmega AP-1216L, AP-1512HH, 150, 300, 250, 400.)


1Coway air purifiers has been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL (Korea Conformity Laboratories) testing.They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers.
→ Tested with Airmega Aim, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250 Art, 250S, 300, 300S, 400, 400S, ProX

299.97% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard.
→ Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250 Art, 250S, 300, 300S, 400, 400S
→ All tested by JFRL and received above result within below time.

All tested by JFRL and received above result within below time.

- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes
- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes
- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes
- Pollen: Tested with Cedar Pollen extract, 60 minutes

3Aerosol test conducted in a Biosafety level 3 laboratory with two Coway air purifier models, Coway Airmega 250 and 400 for removal of SARS-CoV-2 Aerosol by US based MRI Global, a not-for-profit laboratory and partner of US Department of Defense. The test was conducted in a 13.1ft3 chamber. Virus was aerosolized for 15 minutes and the product was turned on high for 2 minutes. Result showed each product effectively removed over 99.98% of the SARS-CoV-2 in 2 minutes. This is a result from a laboratory experiment condition and result may vary in different conditions. This result does not imply it kills SARS-CoV-2 or prevents the transmission of Covid-19. Coway Airmega 250S and 400S are identical to the tested models and has equal performance with an additional mobile connectivity function.

4The concentration of ammonia, acetaldehyde and acetic acid were proven to be removed within 30 minutes by FCG Research Institute, Inc. Human Life Science Lab. It is not a demonstration result in the actual use space. Not all odors and gases may be supported. → Tested with Coway Airmega 150, 160, AP-1512HH, AP-1512HHS, 400, 400S

5The coverage area of the air purifier is based on an area where the air cleaner can make two air changes per hour (ACPH). An air change per hour translates to how many times an air purifier can clean an area, assuming the height of a ceiling to be 8 ft, in one hour. Therefore ** means two air changes per hour means that the cleaner can clean the area once every 30 minutes and * means air changes per hour means that the air purifier can clean the area once every 60 minutes.

10Terms and conditions apply. Discounts, including promotions, coupons, bundle discount and subscription discount, cannot be stacked on top of other coupons. During promotional periods, discount codes will not be able to be applied to orders. Promo codes may apply to products only—filters, accessories, and new products within 3 months of the release date are not included.