DQ ( DESIGN QUALIFICATION):

A design evaluation protocol is a written examination of evaluation documents and specifications of the design's conformity with the manufacturing process and specified requirements.

IQ ( INSTALLATION QUALIFICATION ):

This installation qualification protocol has been written to provide documentary evidence that the heating, ventilating & air conditioning (HVAC) system installed in accordance with design intent .

OQ ( OPERATIONAL QUALIFICATION):

This protocol has been written to provide documentary to verify the ability of the HVAC system to control temperature, relative humidity, air change rate,differential pressure, airborn particle count and recovery time...within the respective area to provide the defined grade environment .

PQ ( PERFORMANCE QUALIFICATION):

The performance evaluation protocol is written to show that the process or all processes related to the HVAC system are performed as desired during the operation.