Tool machine tool
HVAC is an acronym that stands for in the English language are: Heating, Ventilating, Air Conditioning, wherein:
Heating: Air setting process to create hot air.
Ventilating: The process of air exchange.
Forced (Forced): air vents with the help of mechanical devices, such as: Supply fan, exhaust fan.
Natural (natural): ventilation occurs naturally without the aid of mechanical devices, such as: exchange of air through the window / door.
Mixed: combination of forced ventilation and natural.
Air Conditioning: Air conditioning.