We have an Dyson Pure Hot+Cool Advanced Air Purifier which we purchased in 2019 and has been working fine. Lately we set it to cool at night and everyone morning we come down and the fan is at full power. We’ve also been away for a week and for the whole week it was at full power to clean the air. We recently replaced the filters from the 2 piece set to an all in one part as supplied by Dyson.
As you can from screenshots it doesn’t seem to improve the quality. What can be done to stop it always being on high and the air quality not improving. I have a feeling it might be a sensor or something as nothings has changed in our home.
Thanks for any help.
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/9aed78c0-ffa1-402a-ade5-a77057306c62.png)
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/64c8ad52-a69f-4aea-a7b8-a5f35adc2be4.png)