According to the document "guidelines for health protection of air pollution (haze) population", it is suggested to install air purifiers in kindergartens, primary and secondary schools, offices, indoor fitness places and other indoor places; If possible, the central fresh air system can be used to

As summer approaches and the college entrance examination is approaching, a five-year "warm classroom" renovation project has recently been launched to make the learning environment more comfortable for children. The reporter learned from the Municipal Finance Bureau on June 2 that in the next five

Recently, Jiangsu Provincial Department of housing and urban rural development organized the revision of the local standard "design standard for thermal environment and energy saving of residential buildings" (hereinafter referred to as the "standard"), which will be implemented from July 1, 2021.

The air filter should be configured according to the performance requirements of different occasions, which depends on the selection of primary efficiency filter, medium efficiency filter and high efficiency filter. There are four main characteristic indexes to evaluate air filter: 1. Air filtering

Nowadays people pay close attention to the health of drinking water. In order to obtain pure and healthy water source, more and more families begin to install water purifiers. 3M water purifier is a kind of water purifier which is more popular in recent years. As we all know, the filter element shou