Cleanroom construction demands particulate control well before the final startup and certifications stages of any cleanroom construction or renovation project. From the materials receiving to initial preparation of the cleanroom construction area clean build protocols for various stages of cleanroom construction must be put into effect.
A clean zone construction area will be designated as such with barrier walls and positive or negative pressure devices deployed to prevent any contamination from entering the designated clean zone construction areas. Increased stages of protocols will be employed during key stages of cleanroom construction to prevent personnel or ongoing construction processes from contaminating previous in place construction components.
There is no hard set rule as to the protocols or number of phases to a clean build construction protocol. Cleanroom clean build construction phases must be balanced between the construction schedule and budget as not to unreasonably impede construction progress but still maintain acceptable particulate levels during the construction processes to limit particulate intrusion or entrapment in previous or ongoing cleanroom construction processes. Hand particulate counters may be employed during each construction process or stage to test for actual particulate levels.