The fresh air system includes one-way flow and two-way flow. The on-way flow fresh air system mainly uses the way of filter screen to filter one-way air. The gap between doors and windows is used as the outlet to exhaust air, namely” forced exhaust, natural air supply”.
After opening the fresh air system, the indoor dirty air will be discharged outdoors, then indoor and outdoor air pressure difference will be greater. The outdoor fresh air will be ”sucked” through the vent or door and window gap. Thus playing the role of ventilation.
The two-way flow fresh air system operates by mechanical air supply, and has an independent exhaust and supply system. The indoor air is discharged through the exhaust outlet, the exhaust duct and the exhaust fan. While the outdoor air enters the room through the combined action of the air supply fan, the air supply pipeline and the air supply outlet.
In order to keep fresh air to the room continuously, the fresh air system should be opened 24 hours continuously. Which can keep the indoor air clean and avoid pollution. Some people may worry about the energy consumption of opening fresh air system for a long time. In fact, the consumption of an ordinary apartment is almost the same as that of a household refrigerator. Compared with air conditioner, long-term opening of fresh air can be considered as an economical and affordable option.
Does the fresh air system need regular maintenance?
--- When using fresh air system, it is still not enough to master the use method. If we do not maintain the fresh air system on time, it may cause pollution. According to the type of filter, water can be washed or replaced directly. Usually it needs to be treated every six months. In areas with severe haze, it needs to be replaced or cleaned in 1-3 months to avoid dust accumulation and weaken the purification capacity of the filter. In addition to the filter, long-term use of the outlet will also absorb a large amount of dust, causing blockage, can be cleaned with professional cleaners.
In addition to cleaning and maintenance of filters, it should also be paid to the air tightness of fresh air system pipes, mainframe connections and control panels for inspection daily. The fan produces vibration in the process of operation, and air leakage may occur at the joint of the pipeline for a long time. The most obvious manifestation is the decrease of air flow, which may directly lead to a great discount in the effect of purification, and the residual dirty gas is in the room.
If you want to breathe fresh air at any time, it is necessary to open the fresh air system 24 hours in a row, and daily maintenance should be attention.
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