Most popular
ERMI Test Kit
Environmental Relative Mouldiness Index — DNA (qPCR) analysis of 36 mould species from a single dust sample.
From $499
Order incl. GST
Because Health Matters
It's not the dose. It's the response.
A lab result tells you the dose. It takes a forensic mycologist to read the response — what the indoor environment is doing to the people in it. That interpretation is the work NSJ was built for, from a DIY screening kit through to a full assessment and expert report.
DNA (qPCR) analysis Australia-wide DIY kits Prepared to expert-witness / court standard
What brings you here today? Choose your path.
Hi, I'm Evie 👋
Tap the mic — ask about a door (“what's assessment & reports?”) or say where to take you.
Independent laboratory
Science-first analysis, no remediation upsell
Australia-wide kits
DIY sampling kits shipped Australia-wide on order
Plain-English reports
Scored results with expert interpretation
AFCA & court ready
Expert and expert-witness reporting
Order a Test Kit
DIY testing kits, analysed in our lab
HERTSMI-2 Test Kit
Targeted 5-species screen for re-occupancy decisions after remediation, scored to the HERTSMI-2 scale.
From $322
Order incl. GST
BacID / Bacterial
Bacterial identification for water-damaged buildings — Coliforms/E.coli and biological indicators.
From $110
Order incl. GST
Lab service
Microscopy Analysis
Direct microscopy of Air-O-Cell, BioTape, surface and material samples by our analysts. Ship your samples to the lab.
From $110
Order per sample
AFCA-IER / EWR
Expert & Legal Reports
Independent expert reports and expert-witness reports for AFCA disputes, insurance claims and legal proceedings.
Make an enquiryWDB Assessment
Council & Water-Damaged Buildings
On-site assessment of the indoor environment and occupant exposure, with reporting, for councils, property managers and owners of water-damaged buildings.
Make an enquiryHow it works
From your letterbox to our lab, and back
01
Order your kit
Choose ERMI, HERTSMI-2 or a bacterial kit. Shipped Australia-wide on order.
02
Collect the sample
Follow the simple dust-cloth or vacuum instructions — about 10 minutes.
03
Post it back
Return your sample to the lab by your preferred carrier, at your cost.
04
DNA analysis
Mould species are identified and quantified using qPCR DNA technology.
05
Get your report
A scored, plain-English report with interpretation from our scientists.
What our clients say
“David has supported us in navigating legal battles and remediation options — either with consultancy or simply an understanding ear. To have a mycologist with David’s experience makes the challenge seem a little easier to navigate.”
— Alexx Stuart, Founder, Low Tox Life
“We were about to lose at AFCA and almost gave up on our insurance claim before contacting David Lark. His team provided an expert witness report that was clear and concise. If you require expert consultancy services, David is the best. I will always remember David’s kind words during some difficult times.”
— Homeowner, Brisbane (AFCA insurance dispute, 2022)
Not sure which test you need?
Talk to a scientist — not a salesperson — and we'll point you to the right option.