SRSE Cleanroom Technologies provides complete airborne particle count cleanliness classification test is performed to determine the actual particle count level within the facility at the time of the test (As-Built, At-Rest, or Operational). Particle size(s) of interest, the room occupancy state and the room classification shall be known prior to the beginning of the tests and shall be as specified in the contract documents or as agreed to between the Owner/Buyer and the SRSE Cleanroom Technologies