Stainless Steel Air Vent Ventilation Cover, Round Cover 304 Air Hood,with Built-in Screen Mesh Prevents Debris From Entering,for Gym,restaurant, Supermarket(100mm(39.3"))

☀ Stainless steel louvers: 45° inclined louvers are used to prevents the backflow of rainwater and bring you a better life experience ☀ FEATURE: The ventilation hood has a very high ventilation duct, and the hood prevents rain and cold air from entering the home ☀ Fixed snap ring: with three fixed snap rings, embedded installation, adjustable tightness, does not fall off ☀ Precision net: built-in precision net Stainless steel grille is used to effectively isolate debris and dust, prevent pests from entering the room and avoid blocking the passage. easy to fit and durable. perfect for extractor fans, conditioning units, bathroom, kitchen, office, garages, sheds, campers, cooker hoods. Ideal for room exhaust and ventilation use.