Uxcell 4 Pcs Activated Carbon Air Vent Filters (4"x10") -Charcoal Vent Filters Dust Control Floor Registers Freshener for Air Purifier/Floor/Ceiling, Black

[WHAT TO GET]: This air conditioning filter is made of highly absorbent activated carbon cotton with densely distributed narrow pore, offering excellent breathability. Its high carbon content effectively removes dust, and odors, filtering air from HVAC systems to create a healthier indoor environment. Its slim design maintains proper airflow while filtering

[WHEN/WHERE TO USE]: This charcoal vent filters is suitable for HVAC systems, air purification pre-filtration, and air deodorization. It can be installed on floors, walls, ceilings, and baseboard vents. It is widely used in various indoor spaces such as bedrooms, offices

[HOW TO USE]: Installation is simple; just insert it into the floor or ceiling vent. It can be cut with scissors to fit smaller vents.

[WHAT TO AVOID]: Please Choose the appropriate size air conditioner filter cotton according to the size of your air conditioner.