The new generation enegy-saving and environmental protection air conditioner KYS18-C31F ParameterAir Flow 18000 M3 ... down foam + paper carton FeaturesShell: stainless steel. Motor: iron casting motor,durable, anti-oxidant, fast heat dissipation, long using ... rubber, it is very environmental, anti-friction, anti-UV, anticorrosion and age resistant. evaporative air cooler, side wind discharge, 18000CMH ...