How do I get the dust off the logs on the gw2078?

Ref. link:
http://homemarketdeals.com/how-to-clean-an-electric-fireplace-insert.htmlWARNING: ALWAYS DISCONNECT FROM THE POWER SUPPLY BEFORE CLEANING THE HEATER.
For general cleaning on the unit, simply use a soft clean duster. Never use abrasive cleaners. The glass-viewing screen should be cleaned carefully with a soft cloth. DO NOT use proprietary glass cleaners.
To remove any accumulation of dust or fluff on the fireplace logs, the soft brush attachment of a vacuum cleaner should occasionally be used to clean the outlet grill of the fireplace. To access the electric fireplace logs follow these easy steps:
1. Remove the 4 screws on the front panel.
2. Carefully remove the front glass panel.
3. Unscrew the rosebud log screw.
4. Wipe and clean the log set with a damp cloth or a soft clean duster.
5. Replace the rosebud screw, glass panel and screws and enjoy!

Compressed air will work.