Panasonic FY120XT Air Purifier Replacement HEPA Filter This is an O.E.M. Authorized part Fits various Panasonic models Oem part number f-y120xt This is a Panasonic replacement part Part Number F-Y120XT This is an O.E.M. part HEPA replacement filter for air purifier model number F-P20HU1 Removes 99.97% of airborne particles 0.3 microns or larger Packaging provides clear installation instructions Lasts up to 3 years with proper care; monthly vacuuming recommended Measures 18-1/2 by 1-1/8 by 14-1/4 inches; made in Japan