The fan requires little maintenance. Do not try to fix it by yourself. 
Refer it to qualified service personnel if service is needed.
1. Before cleaning and assembling, fan must be unplugged.
2. To ensure sufficient air supply, the honeycomb filter and dust filter 
shall be cleaned regularly.
3. Please wipe the exterior parts with a soft cloth soaking a mild 
detergent.
4. Do not use any abrasive detergent or solvents to avoid scratching the 
surface. 
    Do not use any of the following as a cleaner: gasoline, thinner.
5. Do not allow water or any other liquid into the motor housing or 
interior parts.
1. Be sure to unplug from the electrical supply source before cleaning.
2. Plastic parts should be cleaned with a soft cloth moisten with mild 
soap. Thoroughly remove soap film with dry cloth.
MAINTENANCE INSTRUCTION
CLEANING
6