... reach to 60 m2 4. 5 levels of wind speed LY-868C Floor Air Purifier:CADR: 300CFM (510m ... be adjusted according to the air quality under auto mode.3,5 levels of wind speed, applicable for ... display, different colors display according to indoor air quality.7,Various choices for panels, including ... 5.09,Special duct design by professional company, low noise ,strong wind blow 10,Using essence box,fresh air ...