Clean-room

A man-made environment that has much lower perticle counts than a normal environment

1. Hospital surgery rooms: to control the airborned bacteria contamination. ( responsible for postsurgery infections )
2. Semiconductor Industry: To control contamination of tiny particles. ( particles can cause defects on microelectronic devices and circuits.
3. Pharmamedical production. ( to control bacteria contamination in the drugs )
4. Space research and developement. ( the building and assembling of space shuttles and satelites. ( the space industry suffered many crashes and failed lunches during the 60:s to the 80:s because of particle-contaminated electronics )
5. Clean-rooms also appears i the food industry, but have lower requirements.