20x20x1 Air Filter, MPR 2800, MERV 14, Healthy Living Ultrafine Particle Reduction 3-Month Pleated 1-Inch Air Filters, 2 Filters

DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.81 x 19.81 x 0.81 EXCLUSIVE TECHNOLOGY: Designed with exclusive 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through COUNTLESS MICROPARTICLES: With a 2800 MPR and MERV 14 rating, as well as an 81% small particle capture rate (1) and 93% airborne virus particle capture rate (2), your Filter will help capture many microparticles from the air passing through it