Filter material replacement frequency of Nanjing Ecofil automatic winding filter
1. It varies from region to region. Pollution in the north is more serious than in the south, because there is less vegetation and greening in the north. If the pollution is serious, the filter material needs to be replaced faster. For example, in the winter in Shijiazhuang, the filter material will be rolled once a week or so, and the 3-meter-high roller shutter 15…
