Activated carbon is a black powder, granular or pellet or amorphous with porous carbon. The main components are carbon, and contain a small amount of oxygen, hydrogen, sulfur, nitrogen and chlorine. It...

In the absence of professional environmental testing, it is recommended to use activated carbon for at least one month. The safe check-in time of science is determined by the testing results of indoor ...

The general office of the state council forwarded the department of environmental protection To promote the joint prevention and control of air pollution Notification of air quality guidance The state ...

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