Pharmaceutical cleanrooms demand fire safety solutions that don't compromise contamination control or product integrity. Specialist engineering is essential.. Cleanroom Fire Safety Pharmaceutical manufacturing facilities and cleanrooms present a unique intersection of fire safety, contamination control, and regulatory compliance. The Challenge Cleanrooms operate under strict environmental controls: Positive pressure cascades — maintaining higher pressure in cleaner areas HEPA filtered air supply — removing particles down to 0.3μm Controlled temperature and humidity — critical for product quality Restricted access — personnel airlocks and gowning procedures Fire safety measures must not compromise these controls, yet must protect both people and high value pharmaceutical products. Detection Challenges Point detectors are problematic in cleanrooms: Standard detectors can introduce particles into the clean environment High air change rates (20 600 ACH) can dilute smoke below detection thresholds HEPA filters may remove smoke particles before they reach ceiling mounted detectors Solutions: Aspirating detection sampling from within the HVAC ductwork (before HEPA filters) In duct VESDA sampling at HEPA filter face Beam detection across large cleanroom spaces Return air monitoring — smoke enters return air before reaching supply side filtration Suppression Considerations Water based systems: Standard sprinklers unacceptable in ISO 5 and above cleanrooms (water contamination) Pre action systems acceptable in ISO 7/8 areas — no water in pipes until fire confirmed Water mist systems may be acceptable with appropriate validation of contamination risk Gas based systems: FK 5 1 12 (Novec 1230) — leaves no residue, suitable for cleanrooms Inert gas — no chemical contamination but requires room integrity Must not disrupt pressure cascades during discharge Regulatory Context GMP (Good Manufacturing Practice) — EU GMP Annex 1 requirements MHRA expectations for UK licensed facilities FDA requirements for products exported to US Fire safety must be validated as part of facility qualification (IQ/OQ/PQ) For pharmaceutical facility fire engineering, contact us. Magnus Opifex SEVEN LTD — UK's Leading Fire Safety & Fire Engineering Consultancy 🌐 magnus opifex.co.uk 📞 +44 7486 691724 ✉️ office@magnus opifex.co.uk Founders: Nicoleta Vasile, Baroness of Brattleby — CEO, Lawyer and Barrister, Legal & Administrative Director Alina — Technical Director & Expert Fire Engineer (BEng) Head Office: Ealing Cross, 85 Uxbridge Road, London W5 5BW Magnus Opifex SEVEN LTD delivers engineering led fire engineering, fire risk assessments, CFD modelling, and building safety consultancy across the United Kingdom and internationally. With over 20 years of combined experience and a UK portfolio spanning healthcare, residential and infrastructure, we bring truly engineered solutions with a personal touch. © 2026 Magnus Opifex SEVEN LTD. All rights reserved.