Make your computer case dust free by using this Demciflex Magnetic 80mm Round Fan Filter! Dust build-up inside your case will make your precious components look gross and will potentially hinder its performance, and worst, it can lead to component malfunction. This dust filter is meant to protect your components from those unfortunate things. This dust filter will fit any 80mm fan mount holes and will filter any dust where air goes in. When it gets dirty, just clean it with water or wipe it with a clean cloth and because it has a magnetic strip, so you can attach and detach it in seconds. This dust filter is constructed with a non-ferrous, medical-grade and high precision mesh so it will last a long time.