![]() ![]() ![]() That square footage rating is calculated using the purifier’s clean air delivery rate, or CADR. Many portable air purifiers list square footage in their product descriptions, which is a helpful metric-but not the be-all-end-all. Bahnfleth says he keeps an air cleaner with a HEPA filter in nearly every room in his house. ![]() When used correctly, HEPA filters can capture more than 99% of airborne particles containing the COVID-19 virus, according to the CDC. If you’re aiming to lower your COVID risk, it’s important to get a model that has a HEPA (high-efficiency particulate air) filter. What should I consider when purchasing an air purifier? To clean and filter indoor air, you have a few options, the first of which is investing in a portable air purifier. (The same is true if you have seasonal allergies and pollen counts are super high in your area.) Taylor: If the air outside your home is visibly polluted-say, by vehicles or wildfires-opening your windows might pose additional health risks, and isn’t the best approach. Bahnfleth also suggests turning on bathroom exhaust fans to bring more outdoor air in. Bahnfleth says pointing a fan out creates a sort of DIY exhaust fan, as opposed to forcing contaminated air to stay inside.) Dr. To maximize impact, the Centers for Disease Control and Prevention (CDC) suggests placing a fan “as close as possible to an open window, blowing outside.” (Yes, it might seem counterintuitive to have the fan pointing away from you, but Dr. You can do this year-round and with heat or air conditioning running, but Bahnfleth says relying only on open windows in those instances isn’t the most energy efficient way to ventilate your home. “I do it every morning and air the house out,” Dr. The easiest way to bring fresh air in? Open your windows to replace stale indoor air with fresh outdoor air. Taylor has dedicated her career to understanding how indoor environments impact our well-being, and she works with the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to create guidelines on indoor air quality. “The indoor environment shapes our health,” Stephanie Taylor, MD, a physician with a master’s in architecture who founded Building4Health to address this very issue, tells SELF. The EPA reports that Americans spend around 90% of their time indoors. And with how much time most people spend inside, air quality really matters. Ventilation is the process of introducing clean air to an indoor space, either by bringing in outdoor air or installing filtration systems to clean the air. What is ventilation, and why does it matter? But even without the policy changes that would make a big difference in public spaces, there is a lot you can do to improve ventilation in your home. Ventilation has been a hot topic throughout the pandemic, and many experts agree we need to raise the standard for indoor air quality across the board-in our schools, offices, grocery stores, you name it. ![]()
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