Remote and panel control,3 speeds Around 15 degree Celsius to be heated 4 timer design: from 0.5H to 7.5H, PTC heating element Overheat cut-off protection HEPA &Actived carbon filter Negative ions: 2.0 million ions/cc Airflow: > 66m3/h Rated Power: 1600 to 2400 W (adjustable)