The clean room
The purpose of every clean room is to control an environment by limiting the presence of sub-micron particles and modifying inadequate environmental conditions. The level to which the environment is controlled is what separates one clean room from another.
For instance, a Class 10 clean room has 10 particles of size 0.5 microns per cubic foot of air, where as a Class 100,000 clean room has 100,000 particles of size 0.5 micron per cubic foot of air.
The need for clean rooms
The electronic, high-tech, semiconductor, pharmaceutical, aerospace, medical and many other industries depend on clean room technology. As products such as cell phone circuit boards become smaller, the chance of contamination in manufacturing becomes higher.
For pharmaceutical companies, clean, safe and contaminant-free products are imperative to manufacturing and distributing a viable product.