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bathroom tub

Keeping your bathroom air clean

One of the worst places for air pollution is not just close to home—it is your home. Indoors, concentrations of some pollutants are up to five times higher than outdoors, according to the Environmental Protection Agency, and many of those pollutants can do everything from triggering allergic reactions to causing cancer.

One of the worst offenders in your home? The bathroom. That’s partly because mold and mildew thrive in steamy, warm environments. With the addition of plush bath mats and toiletries, all sorts of culprits, from dust mites to potentially toxic chemicals, may also live there.

That’s why it’s especially important to understand how to keep your bathroom as allergen-free as possible.


Floor and walls

If the room is carpeted, vacuum and sweep regularly to get rid of dust mites and pet dander. Use washable bath mats—and clean them regularly. For walls, no matter how pretty it is, remove wallpaper, since mold can grow underneath it. Instead, install tile or paint with mold-resistant enamel paint.


Creams and emollients

Chances are, your bathroom is where you keep a wide variety of soaps, shampoos, cosmetics and the like. But many cosmetics and toiletries use preservatives that break down to formaldehyde, a chemical that has been linked to cancer. To be safe, read the labels and consider tossing potentially problematic products, especially those with preservatives that release formaldehyde, such as quaternium 15, imidazolidine urea and diazolidinyl urea. In addition, look for lotions and potions that are fragrance-free.


Shower, tub, toilet and sink

Clean all surfaces regularly, from faucets to grouts. Towel-dry the tub and enclosure after use. Also, wash shower curtains once a month and replace moldy ones. In addition, be sure to repair leaky plumbing fixtures. Finally, if you keep reading material on hand, periodically remove old magazines and newspapers, because they can be a haven for mold spores.

It’s also important to have adequate ventilation and keep humidity low, especially when bathing or showering. Exhaust fans and an open window can help. Finally, using a smart air purifier with a HEPA filter, like Coway Airmega, can go a long way toward eliminating a host of pollutants from the bathroom.


1Coway air purifiers have 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, 100, 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.