The necessity of a household air purifier
The indoor and outdoor PM2.5 concentrations are not much different. Even if the window is closed, the indoors are only 100 times slower than the outdoor. According to the current explosion weather, the outdoor air is also about 450. Toxic” level.
Moreover, in the room where the window is closed, the human body acts as the main purification device.
This is also the main reason why the indoor PM2.5 index can slowly decrease after closing the window.
Because they are all sucked into the body by you indoors!
The reliable air purifier can greatly reduce the indoor PM2.5 concentration and maintain it in a short time so that the indoor air is in a safe range for a long time.
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