Model HRF-AP1. Includes 1 large air purifier pre-filter. Fits most Honeywell True HEPA Air Purifiers. 17000 series; 18150 series; 50100 series; 50150/50250/50300 series; HPA09x/10x/20x/30x series; HA98x/10x/20x/30x series. Deodorizes the air, reducing odors with activated carbon (from the air that passes through the pre-filter). Traps larger particles such as dust, lint, fibers and pet fur (from the air that passes through the pre-filter). The doctor's choice! No. 1 brand recommended by Allergists (based on 11/10 AQS survey results reporting 124 out of 172 [72%] of surveyed Allergists that recommend an air purifier to their patients, recommended Honeywell air purifiers). Captures larger particles from the air that passes through the pre-filter (all performance claims are based on the room air passing through the pre-filter when used as directed with the recommended Honeywell models): lint & fibers; pet hair & fur; dust. Absorbs household odors (all performance claims are based on the room air passing through the pre-filter when used as directed with the recommended Honeywell models): odors like those from pets, tobacco and cooking smoke. Cutting templates included to size for appropriate model. Makes 1-8 pre-filters depending on model. Model Series: HA09x makes 8 pre-filters; HPA09X makes 8 pre-filters; HA10x makes 8 pre-filters; HPA10x makes 8 pre-filters; HA20x makes 4 pre-filters; HPA20x makes 4 pre-filters; HA30x makes 2 pre-filters; 1050x makes 2 pre-filters; 1059x makes 4 pre-filters; 1115x makes 2 pre-filters; 125xx makes 82pre-filters; 133xx makes 1 pre-filters; 13503 makes 1 pre-filters; 1352x makes 1 pre-filters; 1353x makes 2 pre-filters; 145xx makes 1 pre-filters; 17xx makes 2 pre-filters; 181xx makes 8 pre-filters; 4xxxx makes 2 pre-filters; 5010x makes 4 pre-filters; 5015x makes 2 pre-filters; 5020x makes 1 pre-filters; 5025x makes 1 pre-filters; 503xx makes 1 pre-filters; 51xxx makes 2 pre-filters; 52000 makes 2 pre-filters; 525x makes 1 pre-filters; 53xxx makes 1 pre-filters; 60500 makes 3 pre-filters; 61xxx makes 2 pre-filters; 62xxx makes 2 pre-filters; 63xxx makes 1 pre-filter; 64xxx makes 1 pre-filter. HEPA replacement filters are sold separately. Includes 1 air purifier pre-filter that can be cut to size. Replaces old Honeywell pre-filter model 38002. Captures: lint & fibers; pet hair & fur; dust; pollen. Helps reduce: cooking odors; smoke odors; bathroom odors; pet odors. Any questions? Visit www.kaz.com or call toll-free to speak with a technical expert 1-800-477-0457. Made in Mexico.