# particles var (movable atom)

Source: https://ref.dm-lang.org/atom/movable/var/particles
Added in BYOND 514.

### Default value
> null

A datum (not derived from /atom) containing information about a particle set attached to this atom. See [Particle effects](https://ref.dm-lang.org/notes/particles.md) for more information.

Resetting this var to null after it has contained a particle set will cause any existing particles on this object to immiediately disappear.

### See also
> [Particle effects](https://ref.dm-lang.org/notes/particles.md)