Pure Cool DP04 Desk fan always reports PM2.5 and PM10 Values as severe (999) : r/dyson
How to fix a Dyson fan purifier that shows PM2.5 and PM10 as severe | Trusted Reviews
How to fix a Dyson fan purifier that shows PM2.5 and PM10 as severe | Trusted Reviews
My Dyson TP04 is on 999 and has been for several days. I have taken the filters out, wiped them down(dry, not wet), reset the filter and nothing has helped. I am
Dyson TP04 reports 999 on PM 2.5 and PM 10 - sensor cleaning - YouTube