A Clean Room is an environment that is used for the manufacturing of precision equipment or conducting of scientific research that has a strictly controlled level of contamination. Clean rooms use specifically designed equipment to control the amount of particles per cubic meter at a specified particle size in the room. In some cases even air temperature and humidity controls are needed.
Regardless of cleanliness class, the air to all clean rooms is filtered through HEP (High Efficiency Particulate Air) or ULPA (Ultra Low Particulate Air) filters. These filters are rated for 99.99 percent efficiency on 0.3 micron particles (HEPA) and 0.128 micron particles UULPA). Cleanliness is a function of how much clean air is mixed with the contaminated air in the room. The more clean air, the greater the contaminant dilution, and the higher the level of cleanliness. Clean rooms also take advantage of another feature of the filters and that is the pleating of the media in the manufacturing process. This pleating effect causes the air passing through the filter to be delivered in a jet stream. The collective results of these multiple air streams produces a column of clean air moving uniformly away from the filter face.
The process within the space generally dictates the temperature range that can be tolerated. If there are non-specific requirements, the human factor usually will guide the selection.
Often overlooked in the design of a clean room is the stringent humidity requirement. This can vary, again depending on the process involved. Between 40 percent to 60 percent is typical with a variation usually not greater than 5 percent.
Walls can be constructed of any non-shedding material that can be wiped down easily and kept clean. Walls can be gypsum board with a seamless coating on metal studs or they can be modular. Modular walls have a tax advantage in they are considered tangible property and can be taken down and moved.
The best clean room floors are poured seamless systems, seamless sheet vinyl, epoxy, or vinyl tile in that order. Products that limit dust penetration and can be easily maintained are required.
NO.808 JINSHENG ROAD,
JINJIABA, WUJIANG, JIANGSU
Postal Code : 215200
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