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Clean Rooms
Cleanroom is an environment which is mainly used in manufacturing or for scientific research, that has a low level of environmental pollutants like airborne microbes, dust, aerosol particles and chemical vapours.

Any cleanroom has a very specific controlled level of contamination which is measured by the number of particles/m3 and the maximum size of the particle . To provide a perspective, external environment has to be considered about a 5,000,000 class cleanroom.

Cleanrooms can be either small or large. Complete manufacturing facilities can come within a cleanroom with factory floors which covers thousands of square meters. They are mainly used in semiconductor manufacturing, Life sciences,biotechnology and other fields which are sensitive to environmental contamination.

The air which is entering a cleanroom from the outside is completely filtered to exclude the dust and the air inside is recirculated through the High Efficiency Particulate Air (HEPA) and Ultra Low Penetration Air (ULPA) filters so that internally generated contaminants are removed.

Cleanroom HVAC systems controls the humidity to such lower level that extra precautions has to be taken to prevent electrostatic discharges. For entering a cleanroom one is required to wear a cleanroom suit.
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