Are you using a Breeze? Do you control the ppm level?

Question

Smart House

I put a breather in my home office in the hope of fresh air with the window closed. I control the ppm level with the help of a device, which was written about a lot on Habré (probably it’s better not to write the name so that they don’t consider it an advertisement).
And somehow this very breather is missing even at maximum speed (
Are there any owners of such devices here? Tell me how are you?

Answer 1

There is xiaomi mi purifier, with PPM indicator. In winter, everything is already so clean, now the snow has come down and dust has risen - it seems to be spinning, making noise, but the air is not getting cleaner.