For the past week the PM2.5 and PM10 readings have been off the scale, ie >999ug/m3 (severe) on our Dyson Pure Hot & Cool. We had a decorator in recently but is this normal a week later? We have had windows open and good breeze blowing through but there’s been no change in the reading: it’s still off the scale.
Any ideas anyone?
David
(Edited by moderator – tags added)
Try this article.
I’m sure this is what your seeing.
Barry 
Hi
You did mention that you’ve had some windows and doors open recently as well; have you noticed the same issue with those closed? If the steps provided in the article in the previous reply don’t resolve the issue for you, please get in touch via our local WhatsApp channel, where one of our team will be happy to discuss the next steps. To do this, simply click on our Guides and manuals link, navigate to the ‘Contact us’ section of the page and start a WhatsApp conversation.
Hi everyone … cleaned the sensor and all now good. Many thanks for the answers.
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