Filtrete DR04-6PK-1E Air Filter, 14 x 25 x 1, White, 6 Pack Filtrete clean living filters are electro-statically charged to help remove more particles from your air, attracting and capturing particles including: lint, household dust, dust mite debris, mold spores and pollen, from the air passing through the filter Designed with Filtrete brand 3-in-1 technology from 3M to pull in and trap unwanted air particles while letting clean air flow through Microparticle performance rating of 600 Outperforms non-electrostatic filters Lasts up to 3 months