Description:Removable front plate, back plate and middle filter, easy to clean.Suitable for 120mm x 120mm PC case fan.NOTE: Screws are not included here.120mm Fan FilterFan Filters filter the dust out of your computer, keeping your PC components clean and minimizing the chances of fan noise, and even fan failure.Fan Filters Increase Computer LifeA case fan blowing cool air inside a computer case, can also blow in dust and dirt. When this happens the fan can gather dust on its blades and get out of balance. This will eventually cause noise and the fan can even break down faster. A fan filter is a simple and efficient solution to keep your fans and computer computer components clean. Fans will remain clean and silent, and you will extend the lifetime of the fans. Fan filters also increase PC performance by keeping PC components clean.120mm Fan FilterFan filters efficiently keeps dust and dirt out of your PC systemEasy to remove and cleanExtends fan lifeEasy to install, filter fits easily into most PCExtends PC lifeFilter increases PC performance (by keeping components clean)Fan Filter InstructionsReminder: To ensure proper airflow to your PC, make sure to clean your fan filter on a regular basis.How To Clean Filter: Simply wash the fan filter with clean water and dry in a well ventilated area, taking care to keep filter away from direct sunlight. Do not us blow dryer or any other electric device to dry the fan filter, as this can damage your filter. When filter is clean and dry, simply re-install over your case fan.