The contamination barrier Cleanrooms demand exceptionally high air-change rates - often 20 to 60 air changes per hour - to maintain ISO particle classes. That airflow represents a massive energy stream leaving the facility fully conditioned. Recovering it is essential, but cleanrooms add a hard constraint: supply and exhaust air must never mix. Because cross-contamination […]
Pharmaceutical and Cleanroom Exhaust Heat Recovery
Pharmaceutical plants and cleanrooms move huge volumes of HEPA-filtered air. Codes generally forbid recirculating exhaust that may carry contaminants, but the energy in that air can still be recovered using physically separated exchangers. Why Separation Is Mandatory GMP and HVAC codes require exhaust from containment areas to be discharged, not reused. Cross-contamination could compromise product […]
Pharmaceutical Cleanroom Make-Up Air Heat Recovery: GEP and ASHRAE 90.1 Compliance
Pharmaceutical cleanrooms condition enormous volumes of 100% outdoor air to hold tight temperature, humidity and particulate limits, and that make-up air is the single largest controllable energy drain in a GMP facility. A properly specified air-to-air heat recovery core can hand back 60–75% of the sensible energy in the exhaust before it is thrown away, […]
Pharmaceutical and Hospital Heat Recovery: Specifying Zero Cross-Leakage
How to specify heat recovery for pharmaceutical cleanrooms and hospital isolation rooms where cross-contamination is unacceptable. Plate, heat pipe, and run-around coil compared.