Manufacturer's description:
Port-A-Cool PAC2K36EP 36IN Portable Evaporative Cooling Unit
Specially developed for cooling in highly combustible areas, the hazardous location models possess all the great features of the Port-A-Cool product line. Durable, one-piece polyethelyne housing is rust and leak proof. Portable cooling where you need it, powerful cooling when you need it and practical cooling for areas where traditional air conditioning is inefficient or cost prohibitive.