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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 mould 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 mould can grow underneath it. Instead, install tile or paint with mould-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 mouldy 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 mould 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.

Disclaimers

1 Airmega air purifiers have been proven to trap dust, pollen, dander in the air based on KCL(Korea Conformity Laboratories) testing. They have been tested 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, 50, 100, 150, Tower AP-1216L, Mighty AP-1512HH, MightyS AP-1512HHS, 200M, Icon, 230, 240, 250, 250S, 300, 300S, 350, 400, 400S, 450, ProX

2Our HEPA filter complies with IEST-RP-CC007 standards at speed level 1 as tested by SGS (Société Générale de Surveillance). SGS's test report only reflects SGS's evaluation of the sample and does not reflect the evaluation of the batch of goods from which the sample was taken. Tested with Airmega 100, 150, 160, Mighty AP-1512HH, MightyS AP-1512HHS, 200M, 230, 240, 250, 250S, 250 Art, 300, 300S, 350, 400, 400S, 450, ProX

3 Tested by KCL(Korea Conformity Laboratories) according to JEM 1467: 2015 condition, the concentration of acetic acid was proven to be reduced up to 99.5% in 60 minutes. Results may vary depending on actual environment. Tested with Airmega 150, Mighty AP-1512HH, 200M

4 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022, showed result of over 99.5% removal rate of common household gases including Ammonia, Acetaldehyde, Acetic acid, Formaldehyde, Toluene, Benzene, Nitrogen dioxide (NO₂), and Sulfur dioxide (SO₂) within 30 minutes. Results may vary in different environments and not all odors or gas particles may be removed. Tested with Airmega MightyS AP-1512HHS, 250S, 300S, 400S, 350, 450

5 Test conducted using Coway Allergen filter media (5×5 cm) placed in a polyethylene bag. The allergen solution and sample were immersed in 2 mL of phosphate buffer (100 ng/mL) prior to the reaction and heat-sealed to specimen size. The reaction was maintained at 4°C for 24 hours. Nichinichi Pharmaceutical Co., Ltd. conducted the test using ELISA to measure allergen concentration. Results may vary in actual product usage environments. Tested with Airmega Mighty AP-1512HH, 200M

6 Removal rates of Ammonia (NH₃) and Hydrogen Sulfide (H₂S) were tested in a 1 m³ chamber under EL608:2023 conditions for 30 minutes. Gas Detector Tubes were used for measurement, and testing was conducted by KCL (Korea Conformity Laboratories). Results may vary in actual product usage environments. Tested with Airmega Mighty AP-1512HH, 200M

7 Reduction rates of Naphthalene, Sulfur Dioxide, and Nitrogen Dioxide were tested using the Airmega Mighty AP-1512HH in 1㎥ chamber, following JEM-1467:2015 standards. Tests were conducted by Intertek. Actual performance may vary depending on the living environment. Tested with Airmega Mighty AP-1512HH, 200M

9 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted with Methyl mercaptan, Isovaleraldehyde, Isovaleric acid in a 1.0±0.1 m³ chamber with a test time of 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of over 99.5% was achieved. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450

10 Tested by the Guangzhou Institute of Microbiology, exposed the filter media to protein solutions for 24 hours under ISO 4333-2022 standard. The results showed strong reduction performance: >99.79% for pollen, >99.60% for dog allergen, >99.90% for cat allergen, and >99.80% for dust mites matter allergen. Actual results may vary depending on room size, airflow, and pollutant levels. Tested with Airmega 350, 450

11 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted in a 1.0±0.1 m³ chamber for 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of >99.5% was achieved for Formaldehyde and Toluene in 60 minutes. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450

12 Tested by Intertek. The evaluation was conducted against designated test materials: Sulfur dioxide, Nitrogen dioxide, and Naphthalene. The test was performed in a sealed 1.0×1.0×1.0 m (1.0 m³) odor chamber at a test room temperature of (23±2)°C (measured between 23.6∼23.9°C) and a test room humidity of (45±5)% R.H. (measured between 40∼48)% Relative Humidity. It met the odor removal rate of ≥99.9% for Sulfur dioxide, Nitrogen dioxide, and Naphthalene. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450

* Order Acceptance and Right to Cancel: The receipt of an order confirmation does not constitute Coway’s acceptance of an order. Coway reserves the right, at its sole discretion and at any time after receiving your order, to accept, decline, or cancel your order for any reason. If Coway cancels your order after you have already been billed, we will notify you via the email address provided and issue a full refund of any billed amounts immediately.

**Shipping Policy & Restrictions: Free standard ground shipping is available only for qualifying orders shipped to standard residential and commercial addresses within the Canadian provinces. Please note that we do not ship to P.O. Boxes. We reserve the right to exclude and cancel free shipping to the Canadian Territories (Yukon, Northwest Territories, and Nunavut), as well as certain remote locations or postal codes—including remote areas within British Columbia (BC)—that qualify as remote regions under carrier guidelines. In such cases, Coway reserves the right to cancel the order and issue a full refund.