Pre-Cut Carbon Pre-Filters efficiently deodorize the air & trap larger particles such as dust, lint, fibers & pet fur. Enjoy the many comforts associated with surrounding yourself with a pristine breathing experience all year round. Pre Filters are extremely efficient in capturing particular household gases such as ammonia & the gases from cleaning products, paint & furnishing. Honeywell Pre-Filters are made with activated carbon to deodorize the air & reduce odors involving cooking, smoke, pets & the bathroom. Honeywell Pre-Cut Carbon Pre-Filters are designed for medium room HEPA air purifiers. Air Purifier Filter Type: Carbon Pre-Filter; Filtration For: Dust; Fibers; Fur; Lint; Odors; Pet Hair; VOCs; Air Cleaner Compatibility: Honeywell Series HPA300; HPA304; HPA3300; HPA5300; HPA8350; Width: 17.28".