The new
centrifugal fan suppliers energy assumption would be much higher than PM filter system because it brings the outdoor surplus old air (winter) and hot air (summer), increasing maintain suitable temperature with costing. Although many new air systems have hot recycle module, the energy assumption would be still huge under successive channel when closing windows and doors. For example, many family in Korea capital install new air system , but 90% percentage of them unwilling to use it with heavy cost. So there is a investigate shows that, using new air system every day, these families would spend more about 100$ than those who do not use.
In the heavy haze area, the new air system must clean frequently. The reason is that air system is unlike air filter device, which can judge that whether the system need change filter core parts. And when it needs to be cleaned, its another question because the common persons do not understand it. If maintaining and cleaning can not be done in time, previous pollution would become to be sediment with chemical reaction, born new small particle and new pollution souce. So keeping doors and windows closing would harm to human health when staying in polluted air indoor.
Maintain cost of new air system includes professional manual cost and changing filter materials cost. Sending wind and recycling wind duct, hot exchange core cleaning cost need professional maintain it 1 to 2 time every year with each times cost being 1,000 to 2,000 RMB. Generally, filter system filter need to be changed within 2 to 3 months. When the air quality is bad, it is suggested to change it each month and the price is about 400RMB. In Beijing area, the frequency of maintain should be higher. No matter to salesman or users, it is really hard to come to realize. Meanwhile. If residents strongly address install all air system on the process of new buildings construction and design. Some public buildings, such as school, it would be very suitable to install new air system because it needs plenty of new air while air purifier can not cover too much area.
Although the new air system will be developed gradually, installing it at home should keep a conventional attitude. At the end of March, building dean will lunch the new regulation and hope citizen will understand how to use it.
A survey conducted by Sweden and London, Sanity and tropical dean recently have set up a research that the reason why 34 million children, coming from 183 different countries, given birth early is related to the air particle.
What is more, all these researchers regard that polluted air affect the adults health, but do not come to realize that it is also have potential threaten to unborn fetus.
When the small particle PM2.5 enter into pregnant women lung, and then invade to fetus body, it will increase premature delivery risk. At present, small particle polluted area, such as Sahola south Africa, North America, and South-east Asia, the premature children reach 60%, amount 16 million,. Only decrease the pregnant women explosive under the polluted air can decrease the premature delivery rick and ratio. And people around the world also have to deal with pollution air at peak to enhance air quality.
Owing to construction gas tightness being better and better, its ventilation capacity become smaller and smaller. The house dust, formaldehyde, second-hand smoke odor can not be sent out universally, so that it would strictly harm to human health.
