20 Pcs 12 x 4 In Air Vent Filters 1 Pack of 20 Register Filter Vent Dust Filter AC Unit or Heater Vent Essential Oil Diffuser Filter for Trapping Dirt, Dust, Smoke, Pollen (10x23-20 Pcs)

Key features

• 【GOOD PRODUCT】Our air vent filters are made of tear-resistant and durablepolyester. Our filters have customized thick and density. Our filters are thick and strong but fluffy and light. They will not reduce airflow.
• 【FRESH AND CLEAN AIR】Air vent filters can effectively filt out dust, dirt, pollen and smoke from the vents. Gives you fresh and clean air to breathe. If you are allergy to dust or pollen, this filter will give you clean air and good for your health. Air is essential to health, dust and pollen can carry disease and cause allergy. Using vent filters gives you and your family better air and better health.
• 【PACKAGE AND DIMENSION】You will receive 20 pieces vent filters with the size of 4 x 12 inch. The size suitable or bigger for most standard size vents, and you can cut the filters freely and easily into the size you need.
• 【GOOD ENVIRONMENT】Air vent filters can absorb and block most dust and dirt. Less dust and dirt brings clean floor, sofa and table and better environment for your living and work. Clean air can also lighten the burden of cleaning. Clean air is also for your household electrical appliances.
• 【MULTI-PURPOSE】They are designated for your air vent filter at home or office, but they can be applied for various kinds of use. For air filter, water filter, buffer, blocking, DIY, apply with your creativity.