The category is Heating, Ventilation, Air Conditioning & Parts: Air conditioning systems can also be made based on desiccants (chemicals which remove moisture from the air). Some AC systems reject or store heat in subterranean pipes. In construction, a complete system of heating, ventilation, and air conditioning is referred to as HVAC.
Parent categories: Commercial, Home, Lights, Construction Accessories & Materials
Related categories: Metallurgy, Plastics, Rubber, Chemicals & Energies