Unable to power on The area is out of power. Please wait to resume power supply. Whether the circuit breaker of the place of use is open? Please wait for the power supply to resume. Is the adapter connected properly? Please make sure the adapter AC plug properly connected to the outlet. Please ensure that the adapter DC plug is properly connected to the product host.
Whether the filter Please install the filter is installed After the product | correctly? correctly. has been running for a period of Is the filter Please replace it with time,there is no damaged? anew one. significant Please clean the filter. improvement in | whether the filter | If there is no obvious air quality has residual dirt? | improvement please The air quality replace the filter. display remains the same PM2.5 detector air | Please clean the the inlet and air outlet | PM2.
Please fill in the following carefully: Product name Client’ s name Customer phone Customer address Purchase date Purchase address Dealer name Warranty record Service hours :Monday to Friday holidays ) After Sales Service Warranty Service Within one years after the date of purchase,you will receive a free warranty for any damage caused by manufacturing processes or components that have been confirmed by the company's authorized service station personnel.