Air Conditioner Filter Papers Net Cleaning Anti-Dust for Dust Allergens Description: High-quality ventilation filter: Made of electrostatic non-woven polyester fabric. Special electrostatic filtration captures small particles and reduces dust in your home . They also prevent unwanted items from entering your home . Great value for money: Each package comes with a 200cm x 100cm filter cotton and 300cm of double-sided non-marking mounting tape. It can cover more than 36 standard exhaust ports. Covers non- standard larger size exhaust ports inexpensively. Flexible DIY Design: all sizes of vents , vents and . Cut to fit any size vent. This versatile design makes to cover or install behind non- standard vent sizes and use in DIY projects. EASY TO USE: Just stick the mounting strip to the outside of the vent and stick it on. Easily replace dirty filters without removing the vents . Easy to apply and replace without restricting. Specifications: Material: Polyester Color : White Size Chart: Size: 200x100cm/78.74x39.37inch Package Includes: 1XFilter cotton 1XTraceless double-sided tape