The filter packaging is not removed
When the wrapping plastic is not removed from a filter, this might cause an unusual noise. Please, make sure there is not plastic wrap left covering the filters.
Something is blocking the air inlet or outlet
The air inlet or outlet may be blocked by external objects.
Please check this and make sure the air inlet and outlet are unobstructed.
Your air purifier may be malfunctioning
If none of the above situations apply, then there might be a technical issue with your purifier. In this case, please contact us.