Future: Waterproof grade IPX2. Made of high quality metal matrial,durable,easy to clean. 7 fan blade exhausted fast and strong. Low motor power has overheat protect Suitable for ceiling mg or fixing on wall Metal Protect Net The protrective net is made of high-quality metal material with glossy surface,anti-corros and scratch-proof to prevent inhalat of foreign materials. Metal Fan Blades & Strong Wind Impd metal blades and lar wind design can achieve strong airflow,effectively heat nerat and achieve the cooling effect. e Copper Ball Motor The motor adopts sealed e copper bearing with thermal protect and permanent lubricat,low heat nerat,long running time and long service life. Automatic Vae The vae can be opened and closed with the operat of the fan to prevent mosquitoes and mice. Screw Fixing Net The net cover is fixed by four screws,Which is more se,safer and more se to use. Noted: There are no any Button Control for our products. Stable & Durable Exhaust Fan: The ventilat fan is made of high-quality metal materials,with a bright surface,anti-corros,anti-scratch and prevent inhalat of foreign objects. pared with other petitors' products,it can withstand moisture and high temperature,provide a stable working environment for the ventilat fan,and lonr life of the ventilat fan. EFFICIENT VENTILAT FAN - Adopts double ball bearing outer rotor brush-l motor to high efficient,quiet operat and high-quality performance. pared with ordinary motors,the upgraded motor can frict coefficient,save electricity effectively and enlar the service life of the hine. EASY TO INSTALL- Suitable for wall or ceiling installat. The exhaust fan is remended to fix with glue or screws.Convenient to clean,you can remove the motor by unscrewing the four-corner screws. The detachable design is convenient for cleaning up fraent or greasy dirt regularly for increasing service life. Widely used wall ceiling ventilat fanIt is an ideal choice for creating efficient indoor HVAC system ong workshops,basements,warehouses,apartment,kitchen,bathroom and other areas that require continuous or regular ventilat.High power bathroom exhaust fan can remove exhaust gas and ventilat with quily and quiet way. after-sales serviceFor All customers,this product es with Lifelong Technical Support & 24 hours Premium Service. If you have any issues about the ventilat fan,please contact us first,we will give you the satisfied solut as soon as possible..