1. When cleaning, please turn off the power supply and unplug it;
2. Please use a towel, cotton swab or toothbrush regularly to remove any attached materials from the air inlet and outlet;
3. Please do not press or rub the air inlet and outlet with nails or sharp objects etc. to avoid damaging the product;
4. Please do not use alcohol, nail shampoo or detergent to clean the product as this may cause malfunction, breakage or colour fading.