Dilution Ventilation Flow Rate Calculator
Dilution Ventilation Flow Rate Calculator to estimate required airflow for solvent vapors using E, MW, concentration, and mixing factor.
Mixture Formula
Mixture Formula Calculator to assess combined exposure to multiple contaminants using measured concentrations and applicable threshold.
Adjusting OEL
Adjusted OEL Calculator for unusual or extended shifts using the Brief and Scala Model to reduce 8-hour exposure limits for longer workdays.
ppm to mg/m³ Conversion Calculator
Free ppm to mg/m³ Conversion Calculator for converting gas and vapor concentrations using molecular weight at 25°C and 1 atm.
TWA Calculator
TWA Calculator to determine worker exposure to airborne contaminants using OSHA PEL, ACGIH TLV and occupational exposure limit formulas.
Heat Stress Calculator
Free Heat Stress Calculator to assess worker heat exposure using WBGT, workload, acclimatization, clothing, and OSHA heat stress guidelines.
PPM Calculator
PPM calculator designed for QHSE professionals to measure defect rates, monitor quality performance, and support continuous improvement.
TRIR Calculator
Calculate your TRIR (Total Recordable Incident Rate) quickly and accurately with our easy-to-use TRIR calculator.