Medical gases, isolation rooms and HTM compliance
Commissioning software for healthcare buildings where infection control and medical gas integrity cannot be assumed, only proven.
A hospital commissioning programme carries risk that an office building does not: medical gas pipework has to be pressure and purity tested before it ever reaches a patient, isolation rooms have to prove pressure regimes under HTM guidance, and derogations against those standards have to be tracked, justified and closed. Deskely holds every clinical and building system in one register so nothing reaches occupation on an assumption.
- Critical systems
- Medical gases, HVAC, isolation
- Standard
- HTM guidance and derogations
- Constraint
- Phased ward-by-ward handover
- Risk
- Infection control and patient safety
Choose your project type
The problem
A missed medical gas test is not a snag, it is a patient safety incident waiting to happen.
Hospital projects are commissioned in phases against a live or soon-to-be-live clinical environment, with infection control requirements, medical gas validation and isolation room pressure regimes layered on top of standard MEP commissioning.
When these records sit in separate specialist reports from separate consultants, nobody has one place to check that a ward's isolation rooms, its medical gas outlets and its HVAC pressure cascade have all been proven together before patients arrive.
Deskely holds clinical and building systems in one register, with derogations recorded against the specific asset and standard they depart from, so the authorising clinician sees exactly what is outstanding and why.
Setting up the register
Wards, isolation rooms and gas manifolds each carry their own compliance record set.
Medical gas schematics, room data sheets and HVAC pressure cascade drawings are parsed into a reviewed register, so every outlet, isolation room and air handling zone carries its design intent alongside its test record.
Pipeline purity, pressure and alarm testing for medical gases is templated to the relevant standard, and isolation room pressure differential testing is linked to the HVAC zone it depends on.
That structure is what lets a ward be commissioned, cleaned and handed over while adjacent wards are still under construction.
Derogations and infection control
Where a room departs from HTM guidance, the departure is recorded, justified and signed off, not just remembered.
Derogations are held against the specific room, asset or standard, with the infection control team's sign-off captured as part of the record rather than as a separate email trail that nobody can find during an inspection.
Terminal cleans, air sampling and fabric inspections that precede clinical occupation are recorded per room, so a ward cannot be declared ready while an infection control step is still open.
Functional testing of isolation room controls — door interlocks, pressure alarms, anteroom sequencing — is proven against the same asset that carries its derogation history.
Phased handover
Wards go live one at a time, and each one needs a complete dossier on its own handover date.
Estates and facilities teams inherit medical gas certification, isolation room test history, derogation registers and O&M documentation ward by ward, not as one bundle at the end of the project.
Because every record is tied to the ward and room it belongs to, a phased handover schedule produces a phased set of complete, exportable dossiers rather than a single document that is only half-finished when the first ward opens.
Signed records with named authorisation are what a CQC or equivalent inspection asks for first, and what the trust's own governance process requires before a ward is signed off for patients.
HTM ventilation validation
A theatre's ultra-clean ventilation canopy is validated to a particle count, not a feeling of clean air.
Operating theatres, isolation rooms and pharmacy cleanrooms sit under HTM 03-01 and related HTM guidance, which specifies air change rates, filtration stages and, for ultra-clean ventilation canopies, particle count validation under simulated occupancy — a layer of proof that sits on top of standard AHU functional testing.
That validation is usually run by a specialist test house separate from the M&E contractor's own commissioning programme, and when its results live in a stand-alone validation certificate, the estates team cannot see whether the room's building services and its clinical validation actually agree with each other.
Deskely holds UCV canopy particle counts, air change validation and filter integrity results against the same room and AHU tag as the general HVAC functional tests, so a discrepancy between what building control accepted and what the validation house measured is visible before the theatre list goes live.
Evidence
The clinical handover dossier
Nothing in a ward or theatre opens without paper behind it. Medical gas purity, isolation room pressures and ventilation validation each carry their own certificate, and an estates team will ask for the one specific to the room in front of them.
Medical gas pipeline purity certificate
Oxygen, medical air and vacuum lines are free of contamination and meet HTM 02-01 purity limits
After pipe cleaning, before final gas connection
Medical gas cross-connection test certificate
No gas line is cross-connected to another service on the pipeline network
Immediately before terminal unit fitting
Isolation room pressure verification record
Negative or positive pressure cascade holds against corridor at the required differential
Before infection control sign-off on the room
Ventilation validation report (HTM 03-01)
Air change rates and filtration in critical and ultra-clean areas meet the specified category
During validation, following commissioning
Ward-by-ward electrical safety certificate
IPS, UPS and essential circuits supply the correct outlets without interruption on transfer
Ahead of phased ward handover
Clinical decant readiness sign-off
The completed ward or department is safe and equipped to receive patients
Final gate before phased occupation
How it runs
From first fix to a ward accepting patients.
Healthcare programmes reward a register that separates clinical risk from general building commissioning from day one, because the two are audited differently and by different people.
- 01
Model wards and clinical zones
Isolation rooms, gas manifolds, theatres and HVAC pressure zones tagged as assets with their governing standard.
- 02
Parse schematics and room data
Medical gas schematics and room data sheets drafted into a reviewed register with design intent attached.
- 03
Template compliance tests
Gas purity and pressure tests, isolation room differential tests and interlock checks defined once, instantiated per room.
- 04
Gate handover on ward completeness
Ward-by-ward dossiers issued from signed records, with derogations closed or formally accepted before occupation.
FAQ
Questions about Hospitals and healthcare scopes.
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