Healthcare & Pharmaceutical
HVAC Design
Operating theatres, isolation wards and pharmaceutical cleanrooms demand HVAC engineering to the highest standards — precise pressure differentials, validated air change rates and filtration proven to remove microbial contamination. Chillmasters has the expertise to design, document and support validation for these critical environments.
HVAC Design for
Critical Environments
Healthcare and pharmaceutical HVAC is governed by detailed technical guidance — HTM 03-01 in the NHS estate and EU GMP Annex 1 for sterile pharmaceutical manufacture — that specifies air change rates, filtration grades, pressure differentials and alarm parameters. We design systems that meet these requirements and produce the documentation to prove it.
- HTM 03-01 compliant ventilation design for NHS and private healthcare facilities across the UK
- Operating theatre laminar flow systems at 25–40 air changes per hour with HEPA H14 terminal filtration
- Negative pressure isolation room design for infection containment and source isolation
- Positive pressure isolation for immunocompromised and transplant patients
- Pharmaceutical cleanroom design to EU GMP Annex 1 Grade A, B, C and D classifications
- IQ/OQ/PQ validation protocol preparation and commissioning support documentation
- Pressure cascade drawings and differential pressure monitoring system specification
- Ductwork material specification (stainless steel or powder-coated) appropriate to hygiene classification
Engineering Critical Environments
HTM 03-01 Compliant
Health Technical Memorandum 03-01 sets precise requirements for air change rates, filtration grades, pressure differentials and alarm setpoints in NHS and private healthcare buildings. Our designs are produced against these criteria from the start, avoiding costly redesign during commissioning or regulatory inspection.
Pressure Differential Control
Negative pressure rooms prevent infectious pathogens migrating to adjacent areas; positive pressure rooms protect vulnerable patients from external contamination. We design the pressure cascade for each zone, specify damper controls and room pressure monitors, and produce the pressure cascade drawings required by estates teams and infection control.
HEPA Filtration
Operating theatres and pharmaceutical manufacturing suites require terminal HEPA H14 filtration at supply air diffusers to achieve the required particle counts. We specify filter housings, test ports, bag-in-bag-out arrangements where appropriate, and the installation details needed to pass integrity testing at commissioning and revalidation.
Full Validation Documentation
Pharmaceutical cleanrooms require Installation Qualification (IQ), Operational Qualification (OQ) and Performance Qualification (PQ) documentation before they can be used for licensed manufacturing. We prepare IQ/OQ/PQ protocols, support the commissioning process and provide the documentation pack required for regulatory submission to the MHRA.
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