Enviracaire Universa Hepa Fits 50150-50300-11520-18150

Hepa replacement filter - fits model 12520 and model 17400. Enviracaire true hepa filter. 99. 97 effective at removing particles as small as 0. 3 microns from the air that passes through the filter. Fits model 12520 and model 17400 should remain effective for 1 to 3 years depending on air cleaner usage