In winter mode, the aa300 provides radiant heat for your operator. To ensure peak performance, keep the air stream free of obstructions. Library Drive-thru Set To Open Nov 30 Library Driving New Albany In summer mode, it satisfies health department codes for a fly fan, deflecting insects, car fumes, and dust. Drive thru window air curtain . The variable, 107w motor is extremely quiet, so it won't affect your attendants' abilities to hear customer orders. Door width, 3 ft max. Air curtains provide protection against insects, dust, odor, fumes, and other contaminant’s. The subtle powder coated aluminum exterior will look great by any drive thru window. Spaces like supermarkets, schools, hospitals, restaurants, cafeterias, malls, and processing plants are ideal for electric air curtains. Installed easily and economically without remodeling, the lopro drive up. The units are ideal for interior installations and come with a black powder coated. Drive through w...