Best practice in ventilation hygiene rests on five principles: classify, inspect, evidence, remediate, report.
- Classify each system by use, occupancy and risk in line with TR19
- Inspect at risk-based frequencies, not arbitrary calendar dates
- Capture structured evidence at every inspection – vacuum tests, deposit measurements, photography
- Remediate against a defined specification, with pre/post evidence
- Report at asset, site and portfolio level for executive and insurer use