Air purifier, I want to be quiet
After the popularity of best room size hepa air purifier in recent years, we gradually understand that the most important performance indicator of air purifiers is the CADR value, that is, the amount of clean air. The CADR value represents how much air can be purified per unit time. The higher the value, The purification performance is also higher.
However, it is also necessary to pay attention to the “silent file CADR”, that is, the minimum wind speed, or sleep file, CADR~
Why do you have to emphasize the small room air purifier hepa mute file CADR?
Because it is already irritating to work, whether it is the traffic on the way to work, the noise of the subway, the voice of colleagues in the office, the chat, or the reprimand of the boss, these are the sources of irritability.
Back home, only four words, I want to be quiet.
So, when I got home, if I drove the air purifier, it was silent for most of the time, ensuring indoor air quality and keeping it quiet.
However, the problem is: quiet is quiet enough, can air quality be guaranteed?
If the CADR value of the mute file is too low, the applicable area will be lower than the bedroom area, and the air in the entire bedroom cannot be completely cleaned. This air purifier will not function as it should, and it may waste electricity.
For example, if the bedroom is 15 square meters, the air purifier mute file has a CADR of 80, and the formula is calculated according to the applicable area:
Applicable area ≈ (0.07~0.12)*CADR
The applicable area is about 5.6 to 9.6 square meters, which is lower than the bedroom area, and the air cleaning is not effective.
In addition, PM2.5 has a hair diameter of only 1/10 and 1/100, and can enter the room through the gap between the door and window. In addition, the temperature change will occur when the day and night changes, the indoor temperature change is slower than the outdoor, and the temperature difference between the inside and the outside will cause the air pressure difference. When the door and window gaps lose the balance air pressure, air flow will occur, and the outdoor smog will enter.
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