• TRUE HEPA 
• Measures approximately 10 1/4 H x 9 1/4 ID x 14 1/2 OD
• REPLACE: Every 12 Months
• FRESH AIR: Enjoy fresh air with your new Air Purifier Filter Replacements
• REMOVES: Airborne allergens such as dust, pet dander, pollen, tobacco smoke, fabric fibers and mold spores
• FITS ONLY THESE SPECIFIC MODELS:
• Honeywell® enviracaire models 13350, 13500, 13501, 13502, 13503 (EV-35B), 13520, 13523, 13525, 13526, 13528, 13350, 50250, 50251, 52500, 63500, 83162, 83259, 83287, and 83332
• Kenmore models 437-83259 and 83259.

Atomic Compatible replaces Genuine Honeywell 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 13520. Overall particle reduction depends on many factors including the amount of air processed, the pollutant type and the pollutants.