{"id":2520,"date":"2021-07-16T23:51:01","date_gmt":"2021-07-16T15:51:01","guid":{"rendered":"https:\/\/aircondlounge.com\/?p=2520"},"modified":"2024-03-26T12:09:19","modified_gmt":"2024-03-26T04:09:19","slug":"how-oxygen-level-is-maintained-in-ac-rooms","status":"publish","type":"post","link":"https:\/\/aircondlounge.com\/how-oxygen-level-is-maintained-in-ac-rooms\/","title":{"rendered":"How Oxygen Level is Maintained in AC Rooms?"},"content":{"rendered":"\n
Ever wonder how we can stay inside a large building for many hours and yet still breathing a sufficient level of oxygen? Needless to say, there is a way to maintain oxygen level in air-conditioned rooms.<\/p>\n\n\n\n
Oxygen level can be maintained in air-conditioned rooms by introducing a fresh air system. Air conditioners can be attached with a fresh air duct to draw outside fresh air into the air conditioner. The outside air must be filtered, cooled and dehumidified by the air conditioner before it can be supplied to an air-conditioned room.<\/strong><\/p>\n\n\n\n A fresh air system mostly can be found in commercial buildings rather than residential buildings. However, some people do connect a fresh air system to their air conditioner to stay refreshed.<\/p>\n\n\n\n A typical fresh air system consists of an axial fan, galvanized iron duct, polyethylene insulation, external weather louvre, air volume control damper and non-return damper. The fresh air system extended from the return air plenum box of an air conditioner to the external wall of a building.<\/p>\n\n\n\n A fresh air system starts with an external weather louvre with an insect screen placed at the external wall of a building followed by the polyethylene-insulated galvanized iron duct which connects the louvre all the way back to the return air plenum box of an air conditioner. In between the duct, an axial fan is placed where it is accessible for service. Right before the duct meets with the return air plenum box, it’s where a non-return damper and air volume control damper can be found.<\/p>\n\n\n\nWhat is a Fresh Air System?<\/h2>\n\n\n\n