🧪 CIH — Certified Industrial Hygienist (Exam-Prep)
Independent exam-prep covering the public ABIH CIH rubric, with original practice questions and a final exam.
Last updated: June 2026
An independent, free exam-preparation course that walks through the publicly published ABIH CIH rubric — anticipation, recognition, evaluation and control of workplace health hazards — with visual lessons, original self-check questions and a 10-question final exam. It is awareness and preparation only and is not the official ABIH course or examination. It maps to ABIH CIH rubric (industrial hygiene). The course is organized into 10 modules, ending with a final exam (pass mark 70%). It is independent, free exam-preparation training — not an official or accredited review course.
What you'll learn
- Air Sampling & Instrumentation
- Analytical Chemistry & Basic Science
- Biostatistics, Epidemiology & Health Risk Analysis
- Biohazards
- Engineering Controls & Ventilation
- Ergonomics: MSD Risk Factors, the NIOSH Lifting Equation, Anthropometry & Assessment Tools (RULA/REBA)
- Noise & Radiation
- Thermal Stressors & Toxicology
- Work Environments & Industrial Processes
- IH Program Management & Hazard Communication
Learning objectives
- Understand that this is independent CIH exam-prep over the public ABIH rubric, not the official ABIH course or exam
- Anticipate and recognise chemical, physical, biological and ergonomic health hazards in the workplace
- Design a defensible exposure-assessment and air-sampling strategy and interpret results statistically
- Apply occupational exposure limits (TLV/PEL/TWA/STEL/ceiling) and core toxicology — dose-response and routes of entry
- Evaluate physical agents — noise, heat/WBGT, vibration and ionizing/non-ionizing radiation
- Recognise biological hazards and bioaerosols and apply biosafety controls
- Select controls using the hierarchy, including LEV/dilution ventilation, PPE and respiratory protection (APF, fit-testing)
- Perform core IH calculations (TWA, mixtures, dilution ventilation, noise dose) and apply professional practice and ethics
- Sit a 10-question final exam (80% to pass) built from original, exam-style questions spanning the whole syllabus