HVAC (Heating, Ventilation, and Air Conditioning) equipment is a vital part of any building, providing comfort and air quality to occupants. HVAC equipment includes furnaces, air conditioners, heat pumps, air handlers, evaporator coils, humidifiers, and air cleaners. All of these components work together to ensure the air in a building is properly heated and cooled, as well as providing fresh air and filtering out pollutants. Furnaces are the primary source of heat, using natural gas, propane, or electricity to heat air and distribute it throughout the building. Air conditioners use a refrigerant to cool air and circulate it throughout the building. Heat pumps are a combination of a furnace and air conditioner, providing both heating and cooling capabilities. Air handlers move air throughout the building, while evaporator coils help cool the air. Humidifiers help maintain a comfortable humidity level, and air cleaners help filter out pollutants. HVAC equipment is essential for providing a comfortable and healthy environment for occupants.