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Clean Room Terminology
What is a Cleanroom?
An enclosed area that’s controlled environmentally over atmospheric contamination, temperature, pressure and, often, humidity.
What is a Cleanroom Air Lock:
A room attached to the Cleanroom. This room has interlocking doors and its function is to act as a buffer zone between the cleanroom and the outside atmosphere, during the transfer of material or personnel. It helps keep the cleanroom pressurized and free from infiltrating dirt.
What is a Cleanroom Air Shower:
An enclosed chamber designed to clean personnel and their garments of contamination, prior to entering the cleanroom, by means of high velocity of air jets.
These are garments made of synthetic fabrics such as Nylon, Dacron, Tyvek and others. They are lint free and limit contamination from personnel.
Cleanroom HEPA filter:
High Efficiency Particulate Air filter, capable of filtering out 0.3 micron particles or larger with 99.99% efficiency
What is a Laminar Flow:
The flow of air in parallel planes (unidirectional).
A unit of measurement equal to one-millionth of a meter: 0.00003937 inches.
Particle size is the maximum dimension of the particle. Linear measure used for fibrous particles and diameter used for spherical particles.
Cleanroom Pass Thru:
A small enclosure that mounted through the cleanroom wall and allows product to be passed through efficiently. Pass thru’s cut down on personnel traffic, hence reducing contamination.
Located at the cleanroom or airshower entrance, sticky mats are multiple layers of treated film with adhesive to clean shoe bottoms and sides before entering the room.
Ultra Low Particulate Air filter, capable of filtering out 0.12 micron particles or larger. ULPA’s operate with 99.9999% efficiency.
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