Use this to calculate noise exposure doses and check TWA compliance against OSHA, NIOSH, ACGIH, and six other jurisdictions — model sound propagation (ISO 9613), analyse octave-band spectra, assess HPD adequacy, and flag ototoxic co-exposures.

Use this to determine whether heat exposures exceed limits and to select appropriate work-rest regimes. Calculates WBGT against ACGIH TLV-H, Thermal Work Limit (AIOH 2025 endorsed), and NOAA Heat Index, with solar load estimation and ACGIH Table 3 screening.

Use this to assess gamma dose rates, calculate ALARA stay times, track radioactive decay, and screen NORM-handling work against dose limits. Covers secular equilibrium decay chains for Ra-226, Ra-228, Th-232, and associated progeny.

Use this to check whether hand-arm or whole-body vibration exposures breach EU Physical Agents Directive action and limit values, combining multiple tools or tasks into a single daily exposure calculation per ISO 5349 and ISO 2631.

Use this to assess UV, optical radiation, EMF, and radiofrequency exposures against ACGIH TLV-L and ICNIRP guidelines. Covers laser, UV, and RF scenarios encountered in industrial, medical, and telecommunications work.

Use this to determine safe weight limits for lifting tasks and calculate the NIOSH Lifting Index. Handles single-task and multi-task composite assessments to quantify ergonomic risk in manual handling operations.

Use this to look up occupational exposure limits for 687 substances across 12 jurisdictions, calculate 8-hour TWAs from multiple exposure periods (including extended-shift adjustment), and assess mixture risk for workers exposed to multiple chemicals simultaneously.

Use this to design or evaluate dilution and local exhaust ventilation. Estimates contaminant generation rates from solvent use, calculates required dilution airflow, predicts time-to-target concentrations, and sizes LEV hoods using ACGIH equations.

Use this to assess flammable gas and vapour risks in confined spaces, model indoor contaminant concentrations using a near-field/far-field two-zone approach, or estimate outdoor dispersion profiles via Gaussian plume modelling — all benchmarked against OELs.

Use this to correct PID direct-reading instrument readings to true concentrations for 300+ compounds across four major instrument brands, and to calculate combined measurement uncertainty for compliance decisions under EN 689.

Use this when you lack quantitative exposure data but need a defensible control decision. Classifies chemical hazards into control bands using the semi-quantitative COSHH Essentials approach, aligned with AIOH 2026 (Firth, Golec & Di Corleto).

Use this to assess airborne exposures to bacteria, fungi, and endotoxin against ACGIH TLVs and WHO guidance. Outputs an exposure zone classification and the appropriate respiratory protection level for the assessed task.

Use this to score Legionella risk in water systems against AS/NZS 3666 and ASHRAE 188. Evaluates temperature, flow conditions, deadlegs, and system configuration to generate a risk rating with control recommendations.

Use this to classify a biological agent into a WHO risk group and determine the corresponding containment level and control requirements for laboratory or healthcare settings.

Use this immediately after an occupational bloodborne pathogen exposure to estimate seroconversion risk and determine whether post-exposure prophylaxis is indicated for HIV, HBV, or HCV, with urgency classification per CDC and ASHM guidelines.

Use this during a mould investigation to classify contamination condition per IICRC S520, determine remediation scope and containment requirements, and establish the appropriate worker protection level. Accepts optional air sampling data.

Use this to prioritise which workplace hazards to address first. Ranks hazards by combining exposure magnitude with health consequence severity using the IOGP 384 matrix, and assigns recommended action timeframes.

Use this to analyse a dataset of occupational exposure measurements for a similar exposure group. Fits a lognormal distribution, estimates the exceedance fraction against the OEL, classifies exposure into an AIHA risk band, and generates a PDF report.

Use this to interpret biological monitoring results against ACGIH BEIs, DFG BATs, and UK HSE BMGVs. Covers solvents, metals, and gases with analyte-specific clinical interpretation and guidance value ratios.

Use this before starting a monitoring campaign to determine how many samples you need, or to assess whether an existing dataset is sufficient to characterise a SEG. Implements AIHA IHSS and NIOSH methods with operating characteristic curves.