Multi-function energy-environmental AIO( Indoor air cleaning); with refrigerant R410A; Heating/Cooling(KW):4.5-7.7-8.5 /3.5-7.0-8.0; Air volume(m³/h):670/790/930; Fresh air(m³/h):200; PM 2.5 removal rate:≥95%; Heat recovery rate 78%; External residual pressure 80 Pa; Low noise(I) ≤45dB
