Okryain Enhanced Ventilation Wall Mounted Ventilation Industrial Ventilation Fan for Home Adjustable Air Duct Commercial Ventilation Compatible with

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- [25cm Reinforced Ventilation Fan] This wall-mounted commercial ventilation fan is made of sturdy iron material and uses the latest thermal spraying technology to provide excellent wear resistance, high temperature oxidation resistance, and corrosion resistance. Equipped with a reinforced outer rotor induction motor and double ball bearings, the airflow reaches 1680m³/h, providing stable and powerful airflow. Compared to the previous inner rotor induction motor ventilation fan, it has greater wind pressure and is more durable. [Stepless Air Volume Adjustment] The latest researched controller is equipped with a stepless speed regulating function, and can steplessly change the speed from zero to super strong wind. You can freely adjust the airflow of the ventilation fan to your preference, and by adjusting the airflow, you can achieve optimal use of energy and further reduce wasteful power consumption. [High-density protection net & prevention of backflow of contaminated air] A high-density metal protection net is used in front of the ventilation fan, which not only prevents foreign objects from getting caught during high-speed operation of the blades, but also prevents injuries from physical contact. The rear side has a backwind prevention damper that strongly prevents dust, insects, cotton, rainwater, etc. from entering, and prevents polluted outdoor air from flowing back. Ideal for room ventilation ventilation fans, warehouse ventilation fans, camper car ventilation fans, underfloor ventilation fans, kitchen ventilation fans, and toilet exhaust fans. [Strong Motor & Easy to Clean] The ventilation fan adopts a powerful induction motor, compared to ordinary motors, the upgraded motor reduces the friction coefficient, effectively saves power, and ventilates more efficiently. Additionally, loosening the screws at the four corners of the ventilation fan makes it easier to disassemble the protective net, internal blades, motor, etc. Dust and oil stains can be cleaned regularly. Helps improve ventilation and extend product life. [One-Year Warranty] We want our customers to try our products with peace of mind, so we offer free returns for 30 days after purchase and a 12-month worry-free guarantee. We make every effort to ensure the quality of our products, but if by any chance there is a problem with the product or you are not satisfied with it, please contact us through your Amazon purchase history and include your order number. Okryain Enhanced Ventilation Fan, 250mm, Wall Mounted Ventilation Fan, Industrial Ventilation Fan for Home Use, Adjustable Air Volume, Duct Fan, Commercial Ventilation Fan, Compatible with 100-120V, Duct Ventilation Fan, For Warehouse/Toilet/Kitchen Ventilation Exhaust (250mm-Black) Ventilation fan, 250mm, powerful, wall-mounted ventilation fan, 25cm duct ventilation fan, ventilation fan 20cm, industrial ventilation fan, commercial pressure ventilation fan, duct fan, large air volume, exhaust duct fan, commercial ventilation fan, warehouse ventilation fan, ceiling ventilation fan, air volume adjustment, controller included. [25cm Reinforced Ventilation Fan] This wall-mounted commercial ventilation fan is made of sturdy iron material and uses the latest thermal spraying technology to provide excellent wear resistance, high temperature oxidation resistance, and corrosion resistance. Equipped with a reinforced outer rotor induction motor and double ball bearings, the airflow reaches 1680m³/h, providing stable and powerful airflow. Compared to the previous inner rotor induction motor ventilation fan, it has greater wind pressure and is more durable. [Stepless Air Volume Adjustment] The latest research controller is equipped with a stepless speed regulating function, and can steplessly change the speed from zero to super strong wind. You can freely adjust the air volume of the ventilation fan to your preference, and by adjusting the air volume, you can achieve optimal use of energy and further reduce wasteful power consumption. [High-density protection net & prevention of backflow of contaminated air] A high-density metal protection net is used in front of the ventilation fan, which not only prevents foreign objects from getting caught during high-speed operation of the blades, but also prevents injuries from physical contact. There is a backwind prevention damper on the back side, which strongly prevents dust, insects, cotton, rainwater, etc. from entering, and prevents polluted outdoor air from flowing back. Ideal for room ventilation ventilation fans, warehouse ventilation fans, camper car ventilation fans, underfloor ventilation fans, kitchen ventilation fans, and toilet exhaust fans. [Strong Motor & Easy to Clean] The ventilation fan adopts a powerful induction motor, compared to ordinary motors, the upgraded motor reduces the friction coefficient, effectively saves power, and ventilates more efficiently. Additionally, loosening the screws at the four corners of the ventilation fan makes it easier to disassemble the protective net, internal blades, motor, etc. Dust and oil stains can be cleaned regularly. Helps improve ventilation and extend product life. [One-Year Warranty] We want our customers to try our products with peace of mind, so we offer free returns for 30 days after purchase and a 12-month worry-free guarantee. We make every effort to ensure the quality of our products, but if by any chance there is a problem with the product or you are not satisfied with it, please contact us through your Amazon purchase history and include your order number.