The harder you train, the more air your body demands. Every workout asks the body to move more air. During exercise, breathing becomes faster and deeper. One review in Breathe notes that ventilation can rise from around 12 litres of air per minute at rest to as much as 100 litres per minute during intense exercise (“Your Lungs and Exercise”).
That is the part people forget. In a gym, you are not just sharing equipment. You are sharing room air. Most gyms understand surface hygiene. Wipe the bench. Clean the mat. Sanitise the handles. Keep the changing rooms decent. All of that matters. But it is only the obvious part of the problem. The less obvious part is what the room is holding.
I go to one of the more popular gyms in my area. Good equipment, steady crowd, always busy. But on some days, the air hits you before the workout does. It is not just sweat. It is sweat, deodorant, rubber flooring, cleaning spray, closed AC, fabric dust and too many people breathing heavily in the same room. Not exactly the environment one imagines when signing up to become a better version of oneself.
Don't get me wrong, this is not just about smell. Research on indoor air quality in health clubs has found that particle levels can rise with occupancy and physical movement, partly because activity stirs settled particles back into the air (Peixoto et al.). In simpler terms, a busy gym does not have still air. People move, jump, lift, run, stretch, sweat and breathe harder. The room responds.
In Indian cities, gyms often come with additional complications. Many are near traffic, inside malls, in basements, above busy roads or tucked into dense buildings. Outdoor pollution enters. Indoor activity adds to it. Air-conditioning may keep the room cool, but cool air is not automatically better air.
A gym can look clean and still feel heavy. That heaviness may come from poor ventilation, trapped humidity, fine dust, rubber flooring, cleaning products, fragrances and limited air movement. The Centers for Disease Control and Prevention notes that better indoor air often depends on a layered approach: ventilation, filtration and regular building-level maintenance (“Ventilation in Buildings”).
Of course, an air purifier does not replace cleaning but proper filtration can help reduce airborne particles such as dust, pollen, smoke residue and other fine matter circulating through the room.
Lighting matters. Flooring matters. Equipment matters. Temperature matters. Music, layout and cleanliness matter too. Air deserves the same attention.
Air is easy to overlook because it is invisible. Therefore, the question is not whether people notice the air. Their bodies already do. The real question is whether the space has been designed with that reality in mind.
Works Cited
Peixoto, Cristina, et al. “Assessment of Indoor Air Quality in Health Clubs.” Environmental Monitoring and Assessment, 2023. https://www.researchgate.net/publication/321018859_Indoor_air_quality_of_environments_used_for_physical_exercise_and_sports_practice_Systematic_review
“Ventilation in Buildings.” Centers for Disease Control and Prevention, 11 May 2023.https://archive.cdc.gov/www_cdc_gov/coronavirus/2019-ncov/prevent-getting-sick/improving-ventilation-in-buildings.html
“Your Lungs and Exercise.” Breathe, European Respiratory Society, 2016. https://publications.ersnet.org/content/breathe/12/1/97
