HEPA filters are common in air purifiers and vacuums. Here's more on what they do, and whether they're worth prioritizing in the appliance you're shopping for.

Sandwiched between them is the H13 HEPA layer, which is capable of ... It offers a triple-layer filtration system that includes a washable large particle filter, a customized dual-layer silent ...

It uses high-grade H13 HEPA filters that remove an impressive ... It has a five-stage filtration system, including a pet pre-filter, washable pre-filter to grab larger particles, an activated ...

To select the best air purifiers, we focused on those that use high-efficiency particulate air (HEPA) filters ... The Blue Pure 511 has a washable pre-filter you can customize with the Swedish ...