What are the fresh air systems?
Fresh air is different in the case of serious outdoor pollution, you can automatically close the new outdoor outlet, while opening the room to prevent the introduction of haze, while increasing the service life of the filter to reduce post-maintenance costs. Outdoor air is good for outdoor circulation
In the traditional fresh air system on the basis of improvement, better solution to serious pollution in the indoor pollution under the weather, while solving the problem of low indoor oxygen content.
There are many types of fresh air system classification, the main attention to whether the pipeline, formaldehyde purification, pm2.5 purification, heat recovery and other functional distinction
