Haze prevention has a "clean" C5 series
Cleaner ventilation: more professional haze filter element can effectively filter PM2.5 and PM10 up to 85%;
More quiet ventilation: no window is opened for ventilation, and the whole window is ventilated in a closed state to make the night quiet.
Safer ventilation: small opening size and width can effectively protect children and prevent illegal entry of external personnel.
More controllable ventilation: through the control interface, let the supply of fresh air follow one's inclinations;
More beautiful ventilated: French window need not design next fixed glass, can do a whole to prevent haze to open fan, safety is good, beautiful atmosphere.