Filter Dimension: Our Hepa 550 Filter Size: ????.??"?? ?? ????.??"?? ?? ??.??"??. Please Confirm Your Filter Size Before Purchg. ?????? Not For 19 X19 Inch And 19.5X19.5 Inch Filter. | | Perfectly Compatibility: Our Merv-10 Replacement Filters Are ???????? Perfectly Compatible With Alorair Cleahshield Hepa 550 Air Scrubber And Abestorm Hepa 550 Air Scrubber. They Are Not Compatible With Other Product Models. ?????? Compatible With Mounto Af500, Drieaz Hepa 500, Bluedri Air Shield 550 (Bd-As550) And Cadpxs Shield 550 Air Scrubbers. ???????????? ?????????? ???????? ?????????????? ?????????? ?????? ???????????? ???????? ???????????? ????????????????????. | | High Efficiency Filtration: The Merv-10 Pre-Filter Serves As The Initial Stage In The Filtration Process, Filtering Larger Airborne Particles Such As Dust, Lint, Hair, Fibers, And Pet Fur. This Ensures Pristine Indoor Air Quality, Whether At Home Or On The Job Site, Safeguarding Both Your Family And Your Work Environment. | | Easy To Replace: The Merv-10 Filter Replacement Set Is Easy To Be Repl.