... speed, to meet the different needs6. Healthy negative ions, the air fresh very much7. Sleep timer function, the use of very ... comfortable;8. Air quality automatic inspection system, control of air quality indoor;9. Automatic intelligent mode, ... .No supplies,lowpower consumption product modelpower(w)max area(m2)packing size(mm)max wind(m3/h)loading quantity 20fpw-500X8020 ...