1. There are many brands of fresh air systems, and there are three purification methods, including electrostatic ones such as Yuanda, physical ones such as Honeywell and Panasonic, and integrated electrostatic dust removal and physical filtration. The purchase of fresh air system should not be based on this. The following are the basics of buying.
2. Ozone produced by electrostatic dust removal of air purifier and fresh air system is harmful. When the ozone concentration is less than 0.05PPM, that is, 0. 1mg/m3, it is safe. When the ozone concentration in non-circulating air reaches 0. 1mg/m3 per cubic meter, people's larynx, nasal cavity and other organs will feel stimulated.
3. When this concentration reaches 0.2mg/m3, respiratory diseases will be aggravated, and the eyes will have a sense of irritation. According to China's regulations, when the ozone concentration exceeds 0. 16mg/m3 in the living environment, it constitutes air pollution. Because the ozone concentration produced by air purifiers and fresh air systems is relatively low, the amount of occurrence and accumulation should be considered. A little more may not be a problem, but if the cumulative amount is large, the problem will be very serious. Solution: At present, the best way is to use fresh air purification system and adopt the principle of micro-positive pressure to realize real air replacement, which can reach 36 times per hour. With ultra-long-lasting ozone reduction and removal module, it has the function of removing ozone.
For the fresh air purifier using electrostatic dust removal technology, the replacement of consumables is much smaller, because the dust removal net can be cleaned by water washing, and the maintenance cost is naturally reduced. However, due to the low consumption of consumables, the problem of ozone generation can not be ignored. If its concentration reaches a certain proportion, the harm is also great.