LEED Indoor Air Quality (IAQ) testing is one of the final and most crucial steps before a new building opens its doors – especially for projects aiming to achieve LEED certification or other sustainability credentials.
Recently, our team at Environmental Efficiency carried out a pre-testing IAQ audit for a major construction project in Northern Europe. The goal? Identify and fix potential air quality risks before the official LEED post-construction, pre-occupancy assessment.
By taking action early, our client reduced the chance of costly retesting and ensured a healthier indoor environment for occupants from day one.
Why Pre-Testing IAQ Audits Are Important
During construction, dust, chemicals, and airborne contaminants can accumulate – sometimes in ways that aren’t obvious until final testing.
Failing the official IAQ test can lead to:
- Delays in building handover
- Costly remediation work
- Negative impact on sustainability targets
- Occupant health concerns
A pre-occupancy IAQ audit identifies these issues in advance, giving your team time to resolve them.
How We Conducted the Audit
We visited the site approximately four weeks before scheduled IAQ testing, following LEED v4 requirements and SMACNA IAQ guidelines. Our inspection covered:
- HVAC protection & filtration
- Pathway interruption between clean and active work areas
- Source control of dust and VOCs
- Storage and off-gassing of materials
- Housekeeping and chemical storage practices
- Compliance with LEED pollutant thresholds for particulate matter, VOCs, formaldehyde, and more
Common Issues We Found (and Fixed)
- Ventilation Duct Protection – Some diffusers and grilles required resealing to prevent dust ingress.
- External Dust Risks – Air intakes near unpaved traffic areas needed dust suppression before testing.
- VOC Sources – High-VOC products (paints, adhesives, solvents, timber) were being stored in sensitive areas.
- Unsealed Pathways – Open doors between clean and active work areas risked contaminant transfer.
- Furniture Off-Gassing – Items still in packaging needed to be unwrapped and ventilated.
- Chemical Storage – Some cleaning products were missing hazard documentation and needed relocation to secure storage.
Tips for Passing Your LEED IAQ Test
If your project is approaching handover, it’s worth keeping the following practices in mind:
- Keep HVAC ducts covered until all construction work is fully wrapped up.
- Use high-quality air filters suitable for the environment, and inspect them regularly.
- Keep any products that release strong odours or fumes away from spaces scheduled for testing.
- Close off any corridors that link active work zones to areas still in use by people.
- Make sure new flooring and furniture are aired out properly before any air quality checks begin.
- Always store chemicals in containers that meet safety standards and are clearly labelled for hazards.
Partner With IAQ Experts
Environemental Efficiency Indoor Air Quality audits help project teams pass LEED IAQ testing the first time, avoiding delays and protecting occupant health. We work with contractors, developers, and building owners across Ireland, the UK, and Europe to deliver LEED, WELL, and BREEAM compliance.
If you have a construction project nearing completion, now is the time to schedule your pre-occupancy IAQ audit.
info@enviro-consult.com
www.enviro-consult.com