Made from materials, these are and, ensuring long lasting With 10 / 20pcs included in each pack, it easy and cost effective to replace regularly and enjoy cleaner air all year round Breathe easier with these conical exhaust, designed to effectively filter out and impurities from the air Whether it is in the kitchen, bathroom, or any other area with frequent air circulation, these help maintain a cleaner and healthier environment Suitable for various ventilation, these are perfect for anyone looking to improve the air qualities in their living space, Manufacturer: Msioytog