Why is the concentration of fine dust in the air purifier not dropping?

air-purifier fine-dust

Hello.

I bought Xiaomi 2s now.

It's been an hour since the air purifier was turned on, but the concentration of fine dust continues to be around 30.

Even though the window is closed.

It's true even if you play it hard.

Is it supposed to be like this?

530 2019-05-27 Gentleman

A. 1

Even if you turn on the air purifier, this happens when the fine dust level is severe

Gentleman 6 years ago 0

A. 2

Even if I close the window, it looks like it's all closed, but there's a little by the way
So when the fine dust level is severe, it stays high to a certain extent

Gentleman 6 years ago 0

A. 3

That's what it was supposed to be. Thank you.

Gentleman 6 years ago 0

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