When the air inlet of the hair dryer is dirty, first you need to unplug it from the power supply, remove the air inlet screen, and then use a cotton swab or a toothbrush to remove any adherents on the air inlet and air outlet with a cotton swab or toothbrush.
In addition, because there is a layer of dense metal mesh at the air inlet mesh, when cleaning, you can use a dry lint-free cloth, soft brush to clean up the flotsam and other debris at the crevice, do not use water to clean the air inlet mesh. Do not wash.