Cleanrooms and laboratories exhaust large volumes of conditioned air. Recovering that energy with air-to-air exchangers cuts HVAC load — but GMP, ISO and contamination rules mean recovery must be sensible-only, with no exhaust-to-supply cross-flow. This hub collects CNCSP application notes on cleanroom, pharma, food-process and fab exhaust recovery.

Cleanroom & lab exhaust recovery

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{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Can you recover heat from cleanroom exhaust without contamination?","acceptedAnswer":{"@type":"Answer","text":"Yes — use sensible-only air-to-air exchangers (plate or heat-pipe) with separate air streams and no cross-leakage, so exhaust never mixes with supply."}},{"@type":"Question","name":"Why is recirculation forbidden in pharma exhaust recovery?","acceptedAnswer":{"@type":"Answer","text":"GMP and cross-contamination controls require exhaust to be expelled; recovery is limited to sensible heat transfer through the exchanger wall, never air reuse."}},{"@type":"Question","name":"Which exchanger suits a semiconductor fab?","acceptedAnswer":{"@type":"Answer","text":"A corrosion-resistant sensible plate or heat-pipe unit sized for variable, acidic exhaust, with easy drain-down for maintenance."}}]}

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