Product Name: wind--driven turbine ventilator
Price: 75 US$
Detail: 1. It is no running cost and noiseless, It operates by utilizing energy of the wind to induce airflow by centrifugal action.The centrifugal force caused by the spinning vanes creates a region of low-pressure area, which draws air out through the turbine ventilator.It can work long time so as to make fresh air circulating.
2. Superior anti-corrosion, weather resistance, strong wear resistance, long service life, light weight and high sensitivity, the efficiency of exhausting wind is superior to similar ventilators made from other materials.
3. Minimum packing measuremment, easy to install.
4. 15 years warranty.