Define scope and acceptance criteria
Confirm premises, occupied zones, hours, sensitive users, complaints and relevant benchmarks. Agree the parameters and pass criteria before treatment.
Healthy Space protocol
A transparent path to certification.
The attribution process separates the baseline, the intervention and the verified outcome. This helps clients understand what changed and what must be maintained.
Conduct site review and baseline testing
Record occupancy, temperature, relative humidity, ventilation conditions and likely sources. Sample relevant parameters such as PM2.5, carbon dioxide, total VOCs and formaldehyde.
Design the control plan
Prioritise source removal, ventilation, filtration, moisture correction and maintenance. Specify SmartCoat or another anti-pollutant treatment only where suitable for the identified issue.
Document application
Record product, treated surfaces or equipment, batch details, coverage, application date, contractor and curing or commissioning conditions.
Verify under comparable conditions
Repeat agreed measurements after the stated stabilisation period. Compare conditions, methods and results against the baseline and acceptance criteria.
Attribute and issue
Review the full evidence chain. If the criteria are met, issue a unique certificate with scope, result date, limitations and recommended reassessment date, then publish its registry record.
What is checked
The final test plan is risk-based. It avoids claiming causation where operating conditions or multiple interventions prevent a clean comparison.
Assessment evidence
- Calibrated or fit-for-purpose instruments
- Named sampling zones and time windows
- Indoor and relevant outdoor conditions
- Occupancy and HVAC operating state
- Before and after results
Certificate record
- Unique certificate number
- Premises and assessed scope
- Protocol version and criteria
- Issue and review dates
- Status and material limitations
Decision logic
How attribution works
Criteria met
The post-treatment results meet the agreed criteria, with an adequate and traceable evidence record.
Further action needed
Results improve but a control, operating condition or parameter needs correction before certification.
Causation unclear
Results may be recorded, but the change cannot reasonably be linked to a specific treatment or control.
Certification reflects sampled conditions and the stated scope at a point in time. It does not guarantee that a space is free of every pollutant, pathogen or future air-quality risk.