Filter Material PU (Polyurethane) Foam. During that process you will be issued with an RMA number.
eBay
Noctua NF-A4x20 40mm Computer Case Fan 5V/12V PWM/FLX CPU Cooling Fan Silent Intelligent Temperature Control Ultra Small Fan
Aliexpress UK
Suitable for 120mm x 120mm PC case fan. Protect your PC computer internal components with this 120mm fan case filter. Slides on the back of your computer and protects against harmful dust buildup. 120mm PC case fan filter.
eBay
Jonsbo ZA-140/420 Computer Case Fan DIY Exchange 2 Sets Fan Blades 5V ARGB 140mm ZA-420BR PWM Reverse Combination Cooling Fan
Aliexpress UK
Fans filter grill usually can be used for the protection of heat dissipation, exhaust and vents of air conditioners, motors, exhaust fans, radiators, fans, generators, computers, etc.SpecificationColor: Silver ToneMaterial: Stainless SteelOverall Size: 60mmx60mm / 2.36inchx2.36inch(L*W)Mounting Hole parallel Distance: 50mm / 1.97inchMounting Hole Diagonal Distance: 70mm / 2.80inchPackage Content: 3 Set Fans Filter Grill with 4 ScrewsAdvantageMade of aluminum frame with stainless steel mesh filter, it has excellent pressure and corrosion resistance, better than other plastic mesh filters. Effectively improve the air flow effect of the fan to improve the fan's performance. It avoids the accumulation of dust as much as possible, thus keeping the fan clean and functional longer. Durable and sturdy, easy to install and clean.
eBay
EC Axial Fan 60mm 80mm 90mm 120mm Ball Brushless Fan Cooler AC 110V 120V 220V 230V 240V Computer Case Fan 6025 8025 9225 12038
Aliexpress UK
What is this?Fans filter grill usually can prevent the dust from getting inside the computer case, which can solve the overheating problem. Great for the computer or other electrical equipment cooling fans system.What will I get?Color: WhiteMaterial: PVCOverall Size: 120x120mm / 4.72"x4.72"Mounting Hole Diameter: 5mm / 0.2"Mounting Hole Distance: 105mm / 4.13"Mounting Hole Diagonal Distance: 149mm / 5.87"Package Content: 12 x Fans Filter GrillAre there any advantages of the product?PVC material has good corrosion resistance and is durable.The mesh screen design can provide dust protection while keeping the airflow good.for most standard-size fans.How to use it?Put it on your fan and fix it with 4 screws.
eBay
EC Axial Fan 60mm 80mm 90mm 120mm Ball Brushless Fan Cooler AC 110V 120V 220V 230V 240V Computer Case Fan 6025 8025 9225 12038
Aliexpress UK
AABCOOLING Plastic Filter 120 Black. AABCOOLING Plastic Filter 120 Black is an advanced dust filter that provides effective protection against contaminants in your computer. Compatible with AABCOOLING Anti Vibration Rubber Screws - further increases efficiency.
eBay
TEUCER 20pcs Case Fan Long Screws Water Cooler Fan Extension Fixing Screws Computer Case Front Panel Bottom Fan Long Screws
Aliexpress UK
What is this?PC fan dust mesh filter can be used for home computer chassis fan dust filters, speaker grilles, and other electronic products speakers dust protection. PC cooler fan dust filter can be used to protect home computer case fan dust-proof net, speaker net cover, most vent filters, and a variety of electrical and electronic products speakers dust protection.What will I get?Size: 150 x 150mm/5.91 x 5.91 inch (L*W)Magnetic Strip Width: 10mm/0.39 inchHole diameter: 0.8mm/0.03 inchThickness: 0.45mm/0.02 inchColor: BlackMaterial: PVCStyle: Rounded Corners without Holes and Magnetic Mesh CoverIn the package of: 3PCS x PC Case AccessoriesAre there any advantages of the product?The dust filter PC is made of PVC material that offers good properties and pressure resistance.
eBay
12cm High Speed Fan 4 Pin PC Case Fan Cooling CPU Cooler Large Air Volume Mute Ventilador Desktop Chassis Heatsink Fan ServerFan
Aliexpress UK
Designed to prevent dust buildup, these grills enhance cooling systems in computers and other electronic devices. With a robust silver tone finish, they not only serve a functional purpose but also look great.
eBay
JONSBO ZB-120/240/360 Computer Case Fan 12CM 5V ARGB 120mm Monolithic Structure Water-Cooled Fan PWM Forward/Reverse Fan Kits
Aliexpress UK
Do you feel afraid that the nasty dust and dirt do harm to your PC case, resulting in the degradation of both operational performance and heat dispersion?. This dust filter can efficiently isolate dust, making the built-in fans stay clean and normal working condition and prevent overheating.
eBay
USB Portable Rotation Silent Fan Desk Cooler for Laptop Notebook Desktop PC Ofiice Summer Cooling Fan 4 Blades Rotatable Fans
Aliexpress UK