This Premium Odor Reducing Pre-filter fits virtually all Honeywell Console, Round, QuietCare & SilentComfort Series Air Purifiers. It helps capture larger airborne particles such as dust, lint, fibers, pet hair & fur, maximizing the HEPA filter life. The activated carbon and zeolite helps reduce common household odors and absorbs some common harmful household gases & fumes from cleaning products, paint & furnishings. 1) For best performance, replace every 3 months, 2) Can be cut to make 1 to 8 pre-filters, depending on air purifier model, 3) Shipper is also a display tray - simply tear off at perforation and remove top of shipper; White.