Activated Carbon Air Filters, 1-Micron Inner Filter for 400 CFM Air Filtration S
Airborne dust particulates can dirty up a space and harm a healthy respiratory system. These filters have been specially designed to fit the WEN 3-Speed 400 CFM Air Filtration System (model 3410). However, their universal build can also fit in the majority of 400 CFM air filtration systems on the market.