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How clean is your gym?

We’re often told that exercise is important for keeping our bodies healthy. But what if the air we breathe when we’re working out is unsafe? For those who do most of their exercise in public gyms, the air may be worse than you think.

During exercise, especially aerobic exercise, we tend to inhale more air through our mouths as we breathe deeply through our lungs. When this occurs, outside air bypasses our nasal passageway, which is designed to trap some contaminants, and instead is sent right through to our respiratory system. This means air containing pollutants or other particulate matter may be entering our bodies unfiltered, leading to symptoms such as coughing.

To better understand air quality in gyms, researchers in Portugal placed air quality monitors in 11 gyms for several hours. What they found was surprising. In the gyms monitored, they discovered concentrations of dust, formaldehyde and carbon dioxide in levels above most accepted standards for indoor air quality. Even more disturbing were results during aerobic classes, where many people work out in small, cramped studios. During these classes, contaminant levels were especially high, with participants breathing out carbon dioxide and stirring airborne dust and other particles with each movement. Although carbon dioxide is not toxic to people, it has been linked to fatigue and mental fogginess, which are not conducive to any kind of gym routine.

Unfortunately, exercising outdoors is not always a better alternative, because of issues like pollution from vehicles, or during summer months, the harmful affects of ozone. For those who prefer to exercise outside, many experts recommend checking your region’s air quality status before heading out for a run.

While it may be hard to control the air quality outside, or at your favorite gym, you can take control of the air in your home with a HEPA air purifier. To learn more, head over to our products page and find out how you can breathe easier at home, even while you’re burning serious calories on the treadmill! And if you manage or own a gym, consider looking into air quality solutions for the health of your clients.

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.