Designed with high efficiency, Exhausted ultra air flow ;Low rotational speed, Low noise, Low power consumption.
Designed with special diversion, reduce impeded by air; The blades pulley are corrected by the balance, steady.
I unit product more efficient an area of over 100 square meters; Neither any capacity, Nor the tube pipe, Any where is installed.
The shutter is cool-resisting, anti-ultraviolet rays, any kind of weather, environment is suited; the shutter obeys the theory of positive air flow, no power consumption, no switch . and keeps out of the rain also.
Housing of F.P.P reduce the metal sympatheic response, and light material, and resisting the acid, Soda, hot heat, cool, wet, etc. increase service life.