Unplug the unit.
Remove the collection grid. This is achieved by releasing the latch and pulling the grid out of the unit.
Wipe the collection grid with a damp cloth, towel or sponge.
Replace the collection grid.
Unplug the unit.
Remove the front grill and the back grill by releasing the blue tabs on the bottom of the grills and sliding the grill upwards. The OzoneGuard grill can not be completely removed from the unit.
Use a hair dryer or vacuum to remove the dust from the grill.
Replace the grills.