What a game changer @ODELL ! Thank you so much for bringing it up at @RABBIT HOLE RECAP. I got mine yesterday, and the air quality in our flat was always above 1500, but I never noticed how bad it was! I tried the RHR code, but it didn't work. Thank you for giving us the opportunity to improve our lives! Huge shout-out! Go folks get your own arante! #rhr #co2 #betterlife #bethechange #pow