Exactus Labs

Precision tools for occupational health and hygiene.

Exactus Labs builds calculators and assessment tools for occupational health and hygiene professionals. Built to standard. Free during early access.

Browse tools What this is
Tools

Four areas of practice.

Precision calculators and assessment tools built to stated regulatory and consensus standards. No proprietary models, no hidden assumptions.

Physical Agents
Noise, heat stress, ionising radiation, vibration, and ergonomics. Quantitative assessment against OSHA, ACGIH, NIOSH, and Australian standards.
6 tools available
Chemical Agents
Inhalation exposure assessment, OEL comparison across Safe Work Australia, ACGIH, OSHA, and NIOSH. Atmospheric hazard estimation, ventilation, control banding, and measurement uncertainty.
5 tools available
Biological Agents
Bioaerosol exposure estimation, Legionella risk scoring, bloodborne pathogen PEP guidance, mould investigation, and biological risk group classification.
5 tools available
Risk Assessment & Analytics
Health risk prioritisation, SEG exposure analysis, biological monitoring interpretation, and sampling strategy determination per AIHA, NIOSH, and ACGIH methods.
4 tools available
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Principles

Built for the work, not for show.

Three things every tool here commits to.

Standards-grounded
Calculations cite the regulatory or consensus source. Where standards disagree, the tool shows the disagreement rather than picking for you.
Transparent
Formulas and constants are shown in each tool. Nothing is hidden behind a proprietary engine.
Field-useful
Output is structured for documentation: exportable reports, clear verdicts, and the limits the calculation is valid within.