Three Things to Know Before Buying an Air Purifier

Air purifiers really do work—if you buy the right one.

Some people question the efficacy of air purifiers: How much difference can a little fan device really make? A lot, as it turns out. Certain air purifiers can filter out particles in the air, which could be really useful for those with allergies, asthma, or other respiratory issues. But it’s also important to keep in mind what they can’t do.

Simple Upkeep

This device has a tempered glass panel that’s easy to clean. Medify Air

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The first thing to know about air purifiers is exactly what they are. Essentially, a classic air purifier is a fan with a very fine filter attached; it pulls in air from the room and blows it through the filter, removing certain particles. You want to be sure to get a HEPA filter—this is the industry standard. This type of filter is the only one that’s been thoroughly vetted by third-party researchers.

For Larger Spaces

This model can clean a 1,000 square-foot room in an hour. Medify Air

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So what exactly can a HEPA-filter air purifier do? Quite a bit, it turns out. They’re highly capable at removing certain types of particulates from the air, including dust, smoke, paint fumes, pet hair and dander, pollen and even some mold.

Stand-Up Design

This model removes 99 percent of airborne dust and pollen particles. Blueair

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One important thing to note about air purifiers is that they can only filter out what’s actually floating around the air. That means that you’ll have to dust, vacuum and clean regularly, because larger particles (including dust and mold) will eventually float down to the ground, where a purifier can’t get to them. This is a problem especially with carpets and rugs, which can attract these particles.

Also Consider

Bright Touchscreen

This model is designed for use in spaces up to 600 square feet in size. Molekule

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Quiet Operation

This small unit intakes air from 360 degrees around it. Blueair

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