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Hydrogen Sulfide – H2S Training & Certification

Hard Hat Training courses meet all training requirements set by OSHA and Canada.


We Offer Three Types of Hydrogen Sulfide Safety Trainings

Our regulation-aligned Hydrogen Sulfide certification courses are updated to reflect the most recent changes made to safety standards. Whether you want a certification in as little as two hours, or a more robust training, we can help! We offer online trainings that can be completed in a day, DIY training kits that provide training materials, Train the Trainer certifications that certify individuals to train others and provide training materials, or onsite training. No matter what you choose, we can get you what you want, at a price you can afford.

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Online Training

Online training is for those who prefer self-paced training from any location and/or for employers who need to assign and monitor employee training progress and exam scores.

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Training Kits

The training kit is for those who want the freedom of doing the training themselves. It is an PowerPoint Presentation (PPT) that you can present yourself to a group of trainees.

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Train the Trainer

Train the Trainer courses are online and meant to certify a individual to use the training kit to train others. Training kit and materials are included with the Train the Trainer online course for no additional cost.

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What’s in the Hydrogen Sulfide (H2S) Training Course?

Our hydrogen sulfide (H2S) training course is OSHA Aligned, and our online version fulfills OSHA’s classroom training requirement.

This presentation includes intermittent practice quiz questions to prepare for the final written exam included with the course. In addition to the written exam, this course also includes a checklist for employers to use when administering a practical exam as required by OSHA.

  • Exposure
  • Monitoring
  • Safe Work Practices
  • Personal Protective Equipment
  • Hazards

Course Goals:

Estimated Training Length: Because everyone learns and progresses at different speeds, the amount of time you spend taking this training will vary. However, the estimated time for this training is 1.5 – 2 hours.

Intended Audience:


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For most courses, we offer OSHA trainings in English and Spanish, CAL/OSHA trainings in English, and Canada trainings in English. See all of our options!

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Hydrogen Sulfide (H2S) Certification Standards

U.S. Standards

  • 1910 Subpart Z – Toxic and Hazardous Substances
  • 1910.1000 TABLE Z-2 – TABLE Z-2
  • 1910.134 – Respiratory Protection
  • 1910.146 – Permit-Required Confined Spaces
  • 1910.146 App B – Procedures for Atmospheric Testing
  • Canada Standards

  • B.C.-Workplace B.C.
  • Manitoba- Safe Work Manitoba
  • New Brunswick- Occupational Health and Safety Act
  • Ontario- Ministry of Labor Ontario
  • Quebec- Legis Quebec Ch. 2.1, r. 13
  • Alberta-Alberta Labour OHS Regulations

    Train the Trainer Certification

    The Train the Trainer option is used to certify a trainer to teach others using the included training kit. It incorporates the online course with an additional train the trainer module, as well as the training kit. This option results in an regulation-aligned lifetime trainer certification from Hard Hat Training. This certification is not company-specific, meaning you can take it with you should you change employers.

    Why Do I Need Hydrogen Sulfide (H2S) Safety Training?

    In line with regulations, anyone who operates around H2S must receive training prior to operating the machine on their own. Requirements for refresher training related to forklifts or other processes are very specific. Most other equipment doesn’t have such specific requirements, but it’s wise to follow the same guidelines.

    When it comes to refresher training, the standards in some instances (like forklifts) are very specific: operators must be re-evaluated every three years to see if they are still competent to operate the equipment. Best practices say to apply this same rule to all types of equipment. A so-called “free-pass” cannot be awarded based on experience, age, or time on the job. The extent of the evaluation is to be determined by the employer but should include a written and practical examination that prove continued competency.

    Stay Informed On All Things Hydrogen Sulfide

    Did You Know?

    H2S is actually a natural bi-product of certain bacteria found in the human body. Because of this, the body is adept at getting rid of H2S naturally when exposed to small doses.

    You might be more susceptible to H2S if you have certain diseases, particularly asthma.

    It is estimated that 1 in 2,500 untested gas monitors will fail to respond to a dangerous concentration of gas.


    Frequently Asked Questions

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    Is hydrogen sulfide toxic to humans?

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    Yes, H2S is toxic to humans. After short-term exposure, the gas can cause irritation to the eyes and respiratory system. Over time, it can cause dizziness, headaches, weakness, and even things as severe as a coma or convulsions.

    What happens if you touch hydrogen sulfide?

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    If you contact H2S with your skin or eyes (in gas or liquid form), you can end up with burning eyes and painful skin irritation. If you do come in direct contact with liquid H2S, you can even get frostbite from it.

    How long does hydrogen sulfide stay in the air?

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    Depending on the season, H2S can stay in the atmosphere for anywhere from 1 to 42 days. However, it usually breaks down in the air or is dispersed by wind in about 3 days.

    Can you smell hydrogen sulfide?

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    The gas may be colorless, but it is not odorless. At low concentrations, it smells like rotten eggs. Because of this, it is commonly known as sewer gas, stink damp, or manure gas. At high concentrations, though, it is reported to have a sickeningly sweet odor.


    See Purchase Options

    For most courses, we offer OSHA trainings in English and Spanish, CAL/OSHA trainings in English, and Canada trainings in English. See all of our options!

    View Purchase Options