Nispira Activated Carbon Uiversal Cut-to-Fit Air Purifier Pre-Filter Compatible with 30901 Hunter, PermaLife, HEPA Technology, QuietFlo Air Purifier wooden frame coffee maker and 24-pack configurations

and 24-pack configurations

Activated charcoal pre filter help deodorizing the unfavorable household smell such as smoke

Suggested replacement every 2 - 3 years to maintain best quality of water

Replace part XFF450

Pre filter helps extend HEPA filter life span by preventing hair

Nispira Activated Carbon Uiversal Cut-to-Fit Air Purifier Pre-Filter Compatible with 30901 Hunter, PermaLife, HEPA Technology, QuietFlo Air Purifier wooden frame coffee maker and 24-pack configurationsNispira universal cut to fit activated carbon pre filter for air purifier Compatible with most Hunter PermaLife, air purifier models or any air purifier that uses a universal cut to fit pre filter. Activated carbon reduces household odors from cooking, cleaning, smoking and pets. Removes harmful VOCs (volatile organic compounds) and extends life of HEPA filter by capturing larger particles. Suggest to replace every 3 months to optimize the performance