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by radicality 1484 days ago
I recently got a Medify Air MA 125 after a lot of research. Can recommend the brand.

And yes it definitely makes a difference. Sometimes when I open my windows to get some “fresh” air and remove the co2 from my room, the ppm momentarily goes up. Also very useful for cooking since I don’t have a great vent. Ocassionaly when frying something ppm goes over 200 but it quickly drops down with the air filter.