🌹The air curtain is an electrical device that creates an air barrier with controlled direction, speed, and volume to protect doors and entrances from heat exchange and small particles between an open and closed area..... Multi-purpose air curtain (For warehouses, restaurants, shops, hospitals, malls, barber shops, conference halls, offices... etc.) _Features: _Prevents dust, dirt, and insect entry.. _Remote control unit _Automatic door opening sensor _Prevents entry of unpleasant odors, smoke, and external exhaust fumes _Prevents air leakage from inside to outside and vice versa _Maintains internal temperature (hot/cold) at its set levels _Extends the lifespan of cooling devices. _Environmentally friendly and promotes public health _High speed and greater airflow _Low noise _Elegant design _Filter _Electricity: 220-240 volts _Power: 150 watts _Color: White _Two-year warranty