Feature:1. Electrostatic Cotton: The air vent filter uses needle punched cotton filter material, with special electrostatic filtering that captures small particles and reduces dust in your home. It can also prevent unwanted substances from entering your house.2. Large Size and Easy Installation: The set comes with a 200cmx100cm filter cotton and 300cm double sided seamless mounting tape. It can cover over 36 standard exhaust ports as well as larger non standard ones.3. Flexible DIY Design: Compatible with all sizes of vents, air ducts, and grilles, it can be cut to fit any size ventilation outlet. This versatile design makes it easy to cover or install in nonstandard ventilation holes and use for DIY projects.4. Easy to Use: Simply stick the mounting tape on the outside of the ventilation port and attach the filter. It's easy to replace the dirty filter without removing the ventilation port, and it won't restrict the airflow.5. Wide Applications: Suitable for various ventilation systems and exhaust pipes, including ventilation ports, air conditioners, kitchens, range hoods, greenhouses, and more. Keep your home and air clean and healthy.Specification:Item Type: Air Vent FilterMaterial: CottonWeight: Approx. 228g/8.0ozFilter Size: Approx. 200x100cm/78.7x39.4inTape Length: Approx. 300cm/118.1in.Package List:1 x Air Vent Filter1 x Double Sided Adhesive