Filtrete 20x30x1 Air Filter, MPR 2500 MERV 14, Premium Allergen and Ultrafine Particles, 4 Filters

COUNTLESS MICROPARTICLES: With a 2500 MPR and MERV 14 rating, as well as a 77% small particle capture rate (1), your Filtrete™ Filter will help capture many microparticles from the air passing through it EXCLUSIVE TECHNOLOGY: Designed with Filtrete™ 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your filter at least once every 90 days SMART APP: Use the Filtrete™ Smart App (iOS or Android) to set 30-, 60- or 90-day reminders to change your air filter FOR RESIDENTIAL use only