HVAC (an initialism meaning “heating, ventilation and air conditioning”) systems are something that greatly benefit our modern society, but are often taken for granted. HVAC systems are necessary to keep indoor spaces warm, cool, and full of high-quality and clean air. In order to have an effective system, you need to have quality HVAC air ducts. At Gmcair we specialize in flexible hose for heating, cooling, and venting in outside air to maintain high quality air control. Whether you want to cool a car, house, or industrial sized building, we have the right air duct hoses for the task. “Ventilation” is the process of exchanging air in a space in order to improve the overall air quality. Maintaining this air quality often involves temperature control, carbon dioxide and bacteria removal, and oxygen replenishment. The key to successful ventilation lies with HVAC air ducts.