Features: 1. A perfect replacement: fits the Stl BG45 BG46 BG55 BG65 BG85 BR45C SH55 SH85 fan. 2. High quality neat finish: premium sponge material, durable and non-toxic. 3. Compact Save Space: Reasonable size and lightweight, portable for transportation and storage. Five pieces, enough to last a long time. 4. EASY INSTALLATION - It is easy for you to install and clean. Protect your life, study, work environment, a great accessory for your comfortable daily life, give you better skin and healthier appearance. 5. High Efficiency Guaranteed: This filter can trap dust, pollen and other tiny particles of the air, prevent the bacteria from keeping the air fresh. Specification: Condition: 100% brand new Item Type: Air Filter Material: sponge Replace OEM number: 4229120800 4229 120 1800 Equipment: Product size (L x W): approx. 7.5 x 6 cm/3.0 x 2.4 inches Package list: 5 x Air Filter A PERFECT REPLACEMENT - Fits Stl BG45 BG46 BG55 BG65 BG85 BR45C SH55 SH85 Fan High quality and fine workmanship: high quality sponge material, durable and non-toxic. Compact & Save Space: reasonable size and lightweight, portable for carrying and storage. Five pieces, enough to last a long time. Easy Installation It is easy for you to install and clean. Protect your life, study, work environment, a great accessory for your comfortable daily life, give you better skin and healthier appearance. 【High Efficiency & Guarantee】This filter can trap dust, pollen and other tiny particles from the air, prevent bacteria from keeping the air fresh.