Pre-Filter Cloth 4-Inch Carbon Filters 2-Pack

A filter cloth designed to extend carbon filter lifespan by protecting its charcoal bed from debris.

Form-fitting sleeve made of polyester to block hair, dust, lint, pollen, and other larger particles.

Breathable fabric allows complete, 100% air passthrough for proper air filtration and odor control.

Reusable for up to 6 months of continuous use at a time between dusting and machine washing.