Sales of air purifiers skyrocketed during pandemic — but do they really help?
High efficiency particulate air filters can trap 97.97% of mold, dust, pollen and even some airborne pathogens. Tanya Christian, from Consumer Reports, revealed that’s a top recommendation for any air purifier.
“It is going to capture small microns, dust, pollen, smoke that is in the air,” she said. “And you know that it's certified to capture that.”“There is nothing that says they definitely capture coronavirus particles,” Christian said. “What we found is that air purifiers with a HEPA filter can capture particles that are smaller than a coronavirus, which means that it is possible that they do capture the coronavirus.
“On the box, they're all going to have a clean air delivery rate,” Christian explained. “And what that tells you is the square footage of space that you can use these in. That's important because you want one that is designated for this space that you want to clean.” One designed for a small room but placed in a large space can come up short on efficiency. So it’s best to get a product made for the room size it’s going to be placed in — or to err on the side of a device that promises to clean a bigger space than needed, as Christian added, “It’ll be more effective.Air purifiers can be pricey, so before making the investment, keep in mind, they aren’t the only way to freshen the air in your home or office.
Linsey Marr, a Virginia Tech professor who’s studied how viruses travel in the air, pointed out that just opening a window can create an air exchange that will allow pollutants to leave a room and fresh air to enter.Related
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