What is a cleanroom?
A cleanroom is an environment with high cleanness and is designed to reduce or even eliminate contamination (pollution) of product, process or examination within that space. Contamination can consist of large and fine particles present in the air, as well as fibres, micro-organisms and chemical vapours. The degree of contamination in a cleanroom is specified on the basis of the amount of particles of a certain size per cubic metre.
All cleanrooms must meet an international standard ISO14644-1. A new version of this standard has recently been released: the ISO 14644-1:2015 (replacing the old 14644-1:1999). The definition of a cleanroom according to the current ISO standard:
“Cleanroom – Room in which the concentration of airborne particles is controlled and classified, and which is constructed and used in a manner to minimize the introduction, generation and retention of particles inside the area.”
Ref. International standard ISO14644 first edition 2015.