Critical Rooms • Toronto & Ontario
Cleanroom & Critical Room Air & Pressure Verification
Independent testing of pressure relationships, air change rates, and monitoring devices in pharmacies, GMP labs, isolation rooms, and other controlled environments. Field work is carried out in line with site protocols to keep disruption and contamination risk low.
Environments
Focused on rooms where pressure, cleanliness, and uptime matter.
We support hospitals, pharmacies, and GMP manufacturing sites with field verification of air and pressure performance in critical spaces—not general building areas. Work is coordinated around your operating schedule and cleanroom procedures.
Healthcare critical rooms
- Airborne isolation rooms (AIIR) and anterooms
- Protective environment rooms and suites
- Operating rooms and procedure rooms
- Critical care, oncology, and transplant areas
Pharmacies & sterile compounding
- Hazardous and non-hazardous compounding rooms (e.g. USP 797 / 800–aligned spaces)
- Buffer rooms, ante rooms, and segregated compounding areas
- Biological safety cabinets and primary engineering controls
GMP & laboratory environments
- GMP cleanrooms and support corridors
- Research and production labs with defined air change / pressure requirements
- Material transfer rooms and airlocks
Field verification
Measured pressure relationships, airflow, and room performance.
Our work focuses on confirming that critical rooms are behaving as intended: correct pressure cascades, adequate air change rates, and directional airflow patterns that support your contamination control strategy.
Pressure & flow relationships
- Differential pressure between rooms, anterooms, and adjacent spaces
- Verification of pressure cascades across suites and corridors
- Directional airflow confirmation using appropriate field methods (e.g. door tests, visualisation)
- Door and pass-through behaviour under normal operating modes
Air change rates & supply / exhaust
- Measurement of supply and exhaust airflows at terminals serving critical rooms
- Calculation of room air change rates using appropriate room volumes
- Comparison of measured values with project criteria or owner requirements
- Review of balancing constraints that limit achievable performance
Room configuration & envelope details
- Review of transfer grilles, door undercuts, and planned leakage paths
- Observation of typical door usage patterns during operation
- Checks for obvious conflicts between layouts and intended pressure directions
Monitoring & controls
Field checks on room monitors and connected systems.
Critical rooms depend on the accuracy of local displays and connected control systems. We compare monitor readings to calibrated field instruments and review how those values are being used by the BAS and alarm logic.
Differential pressure monitoring
- Comparison of room pressure monitors to independent reference instruments
- Spot checks of zeroing procedures where applicable
- Review of local display ranges, units, and resolution
Airflow & hood monitoring
- Verification of airflow monitor readings against measured velocities or flows
- Basic functional checks of alarm states where included in scope
- Observation of typical operating conditions during routine work
BAS integration & alarm behaviour
- Comparison of field readings with BAS trends where available
- Review of alarm setpoints, delays, and messaging with site teams
- Notes on any obvious gaps between monitoring intent and actual configuration
Working in live environments
Field work planned around your protocols and production schedule.
Critical rooms operate under defined cleaning, gowning, and access rules. Our work is planned with your pharmacy, production, and facilities teams so testing supports those rules instead of working against them.
Access & gowning
- Following site-specific gowning and hand hygiene procedures
- Limiting the number of people and entries into controlled rooms
Coordination & downtime
- Scheduling work with pharmacy, nursing, manufacturing, and facilities leads
- Grouping tests to reduce room turnover, cleaning, and set-up time
Documentation & traceability
- Recording test conditions, modes, and relevant room status
- Providing room-by-room summaries aligned with your internal documentation needs
Deliverables
Room-level data you can use in your own qualification and reviews.
We provide structured results that can be incorporated into your internal reports, quality systems, and engineering files. Our role is to supply clear, independent data on how rooms and supporting systems are performing at the time of test.
Room summaries
- Measured pressure relationships and air change rates by room or suite
- Notes on observed operating modes and relevant constraints
Instrument & monitor checks
- Comparison of field readings to room monitor indications
- Identification of any significant offsets or configuration issues
Supporting data for your team
- Tabulated readings suitable for use by engineering, facilities, and quality teams
- Clear link between rooms, systems, and the tests performed
Related services
Water balancing is one half of the equation.
Air Balancing
Airside TAB to verify that supply, return, and exhaust are aligned with the newly balanced water side.
View air balancingHVAC Audits
Air and water (hydronic) flow testing for baseline testing prior to upgrades or post-upgrades to verify return to normalcy.
View HVAC auditing servicesCleanroom & Critical Room TAB
Integrated air and water balancing support for sterile production, labs, and pressure-critical suites.
View critical room TABNext step
For rooms that carry clinical or product risk, pressure and airflow need to be shown—not assumed.
We provide independent field measurements and documentation for cleanrooms and critical healthcare spaces across Toronto and Ontario. Our work is designed to fit into your existing qualification, quality, and engineering processes.