How it works
Safe Check uses a chromogenic dye that responds to bacterial activity over 24 hours at room temperature (20-30°C). No incubator is needed — leave the vial overnight on the operatory counter. A visible color change indicates ≥500 CFU/mL, the CDC dental waterline action threshold.
Collect 5-20 mL water sample from each dental unit waterline
Add sample directly into Safe Check vial
Incubate at room temperature (20-30°C) for 24 hours
Read color change; positive = >500 CFU/mL, schedule shock + retest
Sensitivity matrix
Detection limits
Comparison
vs. traditional lab testing
Membrane filtration lab culture (ISO 9215 R2A media (7 day incubation))
Off-site, multi-day turnaround. Requires lab account, membrane filtration manifold, and qualified microbiology technician. Per-test cost from $40–$120 plus shipping.
On-site, same-day result
Result the next morning without sending samples out. No incubator. Pass/fail at the CDC action threshold.
Detection chemistry
How it detects
Visual color change
Disposable test vial reacts with bacterial enzymes to produce a visible color change correlated with contamination level.
Regulatory & standards
Compliance references
- ISO 9001:2015 QMS
- CDC DUWL 500 CFU/mL guideline
- ADA dental waterline guidance
