Equipment Clean Room inside the cleanroom is designed to generate minimal air contamination. Only special mops and buckets are used.

Cleanroom furniture is designed to produce a minimum of particles and to be easy to clean.

Common materials such as paper, pencils, and fabrics made from natural fibers are often excluded, and alternatives used.

Cleanrooms are not sterile (i.e., free of uncontrolled microbes); only airborne particles are controlled.

In cleanrooms in which the standards of air contamination are less rigorous, the entrance to the cleanroom may not have an air shower. An anteroom (known as a "gray room") is used to put on clean-room clothing.

Some manufacturing facilities do not use fully classified cleanrooms, but use some cleanroom practices to maintain their contamination requirements.

COMMODITIES - Care is taken when selecting and using commodity items in cleanrooms. Wipers, cleanroom paper and pencils and other supplies that service the cleanroom should be carefully screened and selected.

Review of the local cleanroom requirements for approving and taking these items into the cleanroom are essential. In fact, many cleanroom managers will have approval lists of these types of items.

COSMETICS - Many Clean Room Factory cosmetics contain sodium, magnesium, silicon, calcium, potassium or iron.