1.ISO 9001:2008, CE, Rohs 2.Air volume:2000 m3/h 3.Residual pressure:180Pa 4. Rated power:0.45*2 kw 5. Noise level:51dB(A) Air conditioning unit als is energy recovery ventilator, with cross flow aluminium core. Which use for remove stale indoor air and replace it with fresh, clean air from outdoors with an Air-to-Air Exchanger. This ventilation system not only provides an economical solution for ...