General description High Quality Ventilation Filter made of needle punched cotton filter fabric. The special electrostatic filtration captures small particles, reducing dust in your home and preventing unwanted objects from entering. Technical specifications Dimensions of filter cotton: 200cm x 100cm Non-marking double-sided installation tape: 300cm Covers more than 36 standard exhaust ports Effectively covers larger non-standard air vents Compatibility and accessories Compatible with all sizes of vents, air vents, and grilles Can be cut to fit any size vent Installation Stick the mounting strip to the outside of the vent Attach the filter cotton easily Replace dirty filters without removing the vent Usage Easy to apply and replace without restricting airflow