There are six major cleanroom contaminants. All of these are treated in a clean environment to reduce the level of contamination that they cause. These major contaminants are:
The following table lists the major sources of particulate cleanroom contamination and some common types of these particulates.
| Source of particulate contamination |
Examples |
|
The room itself |
dust and aerosols in the air |
|
The operator |
hair, skin flakes, bacteria, clothing fibers, finger prints |
|
The equipment |
flecks of dried processing chemicals, dust, paint flakes, fiber dust, wiper dust |
|
Glass or plastic dust |
fragments of glass or plastic from when they are cut |
|
Dirty solvents |
particles in water, cleaning solvents, and the like |
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