Makes the invisible visible

A precisely-angled laser makes invisible dust visible on hard floors.

A custom lens spreads laser light into a fan shape, exactly 1.5° down and 7.3mm from the ground, to illuminate fine dust but not the surface it sits on.
Green laser
The human eye’s evolutionary sensitivity to green light means we see it brighter than other colours, enhancing contrast and making hidden dust clearly visible

Scientific proof of a deep clean³