Like any worthwhile air purifier, the Blue Pure 311 Auto uses an internal HEPA filter and an external pre-filter—which is actually the colorful fabric stretched around its base.

Found in many vacuum cleaners and air purifiers on the market, HEPA filters are a fibrous pleated air filter that theoretically removes at least 99.97% of dust, pollen, mold, bacteria and any ...

The best air purifiers use HEPA filters to quickly and efficiently improve indoor air quality. We tested dozens of models to find the most effective options for your home.

Air purifiers with HEPA filters are the ideal option if you're looking for an appliance to remove dust from your home to the best capability, capturing up to 99.7% of airborne particles.

Available for under $100, this air purifier has a HEPA filter that filters out 99.97 percent of 0.3-micron particles, Levoit says, as well as a prefilter and an activated-carbon filter.

“If you want to spend your money, you don't need to buy a Dyson as long as there's a HEPA filter.” However, the benefits of an air purifier only go so far.

HEPA air filter for cars HEPA filters work by forcing air through a fine mesh that traps 99.95% of harmful particles such as pollen, dust, smoke, and pathogens. And that includes COVID-19.

Remove the filter wrappers Most air purifiers arrive with the filters installed in the machine—where, hidden from view, they are sealed in plastic wrappers. Leave aside the complete ...