(You can see proof of that in our air purifier ratings.) The most effective ones against smoke have a HEPA filter and a large fan that helps to force air through a fine mesh to trap particles.

For example, most air purifiers for allergies come with a High-Efficiency Particulate Absorbing (HEPA) filter, a piece of tech able to trap 99.97% of indoor air pollutants down to 0.3 microns in size.

Most air purifiers come with a high-efficiency particulate air filter, also called a HEPA filter. This type of filter remove 99.7 percent of pollutants in the air, such as dust, pollen ...

It starts with a washable prefilter meant to trap bigger dust and proceeds to a HEPA filter to catch the rest. There’s also a deodorizing filter to make your air smell cleaner and another filter ...

Air filters must satisfy certain standards of efficiency — most commonly those developed by the US Department of Energy (DOE) — in order to qualify as a HEPA filter. The US standard (DOE-STD-3020-2005 ...

If you are a hay fever sufferer, don’t worry about a charcoal filter, but if you want to remove smells, then charcoal is better than HEPA [high-efficiency particulate absorbing].” A selection ...

However, with a HEPA filter, a carbon odour filter, an ioniser and UV-C treatment to combat germs, the HoMedics has a more robust set of air treatment features than any other purifier in its class.

One way to improve your air quality indoors is by using an air purifier — they can filter air contaminants ... in getting effective filtration: HEPA filters and an appropriate CADR.

If you’re going to be around these fumes all day, you’ll want good fume extraction, and you might just consider a DIY fume and particulate filter to polish the exhausted air. While there’s ...

The best air purifiers, based on our lab and in-home testing. Whether you need one to clear out smoke, pet dander, or any other unpleasant odors, we have a recommendation for you.

Ideally, the air purifier you choose includes a HEPA (short for “high-efficiency particulate air”) filter, which removes at least 99.97% of air pollutants down to 0.3 microns. Our top pick for ...