Hot-water mop washing plus hot-air drying in the dock helps prevent the mop pads from developing musty odors or mildew. The dock and tray self-cleaning features also reduce grime buildup that can cause smells over time.
Heated/warm-air drying and keeping the roller rinsed helps prevent musty smells, though users still need to rinse the dirty tank and keep the wash tray clean to avoid odor buildup.
Self-drying helps prevent the musty-roller smell many vac-mops develop, but reviewers still stress that leaving dirty water sitting in the tank can cause odors, so prompt emptying remains important.
Because the dock doesn't store dirty mop water, it can be less prone to tank odors than self-washing systems; odor control still depends on washing or swapping dirty pads promptly.
The dock canister is designed to conceal debris and some reviews mention odor-sealing touches; certain versions include a scented insert that can add a light fragrance during operation.
Tools can start to smell unpleasant after use if residue is left inside, so rinsing and air-drying parts is important; frequent cleaning of tool covers/inserts helps prevent lingering odors; odor control is primarily driven by maintenance habits.
Odor/off-gassing is rarely mentioned, but one technician review reports a strong plastic smell from the unit, described as unpleasant; other reviews do not emphasize odor issues.