What to be purified in the air?
Perfect air purification system can purify "particles, bacteria, gaseous pollutants and smell" at the same time and restore to the initial state of the air.
Central air conditioning system and closed building structure are commonly used in modern buildings,
the indoor oxygen saturation is adjusted by central ventilation system.
As the pollution is becoming increasingly serious, polluted air is injected into the indoor environment through the pipe of the system, which causes direct damage to human health.
In addition, ventilation system of central air-conditioning is hard to clean and dust will be accumulated inside the duct in which
the relatively stable temperature and humidity may cause various breeds of bacteria and viruses, causing cross infection of various diseases and harm human health.
Once airborne disease outbreaks in closed buildings, it will lead to serious consequence.
The material and furniture used in a new building will keep emitting toxic or harmful gases and various kinds of peculiar smell, which is harmful to people's health. The release cycle of formaldehyde is as long as 5 to 15 years, and its harm will exist for a long time.

Characteristics of Indoor Air Pollution
Cumulative
Indoor environment is relatively closed, one of its characteristics of the pollution is cumulative. It takes long time from entrance of pollutants into indoor space, causing higher concentrations to zero concentration of emission.
Long-term
Some surveys show that people stay indoor for the most of the time and even the pollutants of low concentration will produce adverse effect on human health. Therefore, long-term is also one of the important features of indoor pollution.
Diversity
The diversity of indoor air pollution includes both diversity and sources of indoor pollutants. Air pollutants include biological pollutants, chemical pollutants and radioactive pollutants.
According to the China Indoor Environment Test Center provided
The number of excess deaths annually by indoor air pollution caused by as many as 111 thousand people,
Excess clinic as many as 220 thousand people, amounting to over 4.3 million passengers in emergency, such huge numbers, we are reminded,
How important prevention and control of indoor air pollution,
And because of indoor air pollution seen or even touched, substantially completely ignored.
Air purifier was born, because it was aware of the problem,
So let more people aware of the dangers of indoor air pollution.