…hat accumulates on the product’s fan, you’d have to hold it still and wipe it with a sponge or rag. Spraying vinegar haphazardly into the humidifier, then hoping that a bottle brush fitted through the product’s narrow slats will manage to eliminate much dust and dirt is a fool’s errand. At most, the once-dry dust is now wet, and streaked with clean spots where the bottle brush briefly…