Envirotest conduct Pharmaceutical trace surrogate containment (ISPE/ SMEPAC) testing. Occupational hygiene/ COSHH monitoring. Compressed instrument and breathing gas quality surveys. Cleanroom classification to ISO 14644. Occupational/ environmental noise studies. Indoor air quality (IAQ) surveys. Air/ water analysis. LEV/ fume cupboard testing. Deposit identification. Particle counts, airflow, pressure, temperature, humidity, dew point, total hydrocarbons, VOC's, microbiological loadings.