Sticky mat

[3] Their purpose is to prevent contaminants from entering the site with personnel, and hazardous materials from exiting.

In a cleanroom setting, airborne particles that are not removed by the ventilation system deposit themselves onto a surface, where they can be transported by personnel walking on or past them.

Temporary sticky mats are made of a stack of adhesive plastic film layers that are periodically peeled off and discarded.

Permanent mats are made of a polymer, usually polyester- or polyvinyl chloride-based, that binds particles through electrostatic forces.

[5] A 2012 study found that temporary adhesive mats reduced the particle level on shoes and overshoes by 20–50% while permanent polymeric flooring reduced it by approximately 80%, and that adhesive mats released more particles when they were dirtier and when they were peeled quickly.

A clean-looking laboratory room with a white mat across a doorway
A sticky mat in a lens manufacturing facility
A white mat on a floor extesively soiled with soot-colored footprints
A sticky mat in a nanomaterials production facility. Ideally, other engineering controls should lessen the amount of dust collecting on the floor and being tracked onto the sticky mat, unlike this example. [ 1 ]