Absorbs the smell. Doesn't mask it.
The beads rest on the litter surface, right where waste lands, instead of being sprayed into the room above it.
The porous beads take up the moisture that carries ammonia, so the smell is neutralized at the source while a light scent is released as they work.
One capful covers the week instead of the hour a spray gives you.
Strong perfumes are one reason cats avoid their box. The scent stays low so the box reads clean to you and normal to your cat.
It keeps the smell from building up in the days between scooping and a full litter change.
No high-concern chemicals, dust-free beads and nothing left on paws.