Asphyxiation and Suffocation at Work — Injury Statistics and Claims Information
Asphyxiation and Suffocation at Work
Severe oxygen deprivation incidents remain a persistent risk
OSHA has recorded 25 severe cases of asphyxiation and suffocation over the last decade. These incidents almost exclusively impact vital body systems, accounting for 92% of all reported cases, which often leads to immediate loss of consciousness and emergency hospitalization.
The consequences of oxygen deprivation are frequently life-altering. Survivors may face long-term neurological damage, cognitive impairment, and a permanent reduction in their ability to perform physically demanding work.
What's Driving the Trend?
While annual incident counts fluctuate, the underlying causes remain rooted in environmental hazards and mechanical failures. Oxygen displacement and engulfment incidents continue to threaten workers in high-risk environments where atmospheric monitoring is either absent or ignored.
Manufacturing leads all sectors with 28% of reported cases, followed by health care settings. These industries rely on complex machinery and patient interactions that, when mismanaged, create immediate risks for airway obstruction or atmospheric suffocation.
How Asphyxiation and Suffocation Happen at Work
Top causes based on OSHA incident reports
Most asphyxiation cases stem from failures to control the immediate environment. Oxygen displacement is the leading cause, occurring when inert gases or poor ventilation remove breathable air from a workspace, while entanglement in machinery and engulfment in loose materials represent the most common physical mechanisms for these injuries.
| Cause | Incidents | |
|---|---|---|
| 1 | Oxygen displacement | 6 |
| 2 | Caught, entangled in running powered equipment— normal operation | 4 |
| 3 | Collapse, engulfment— loose materials or liquids | 3 |
| 4 | Hitting, kicking, beating by other person | 2 |
| 5 | Choking on object or substance | 2 |
| 6 | Nonroadway collision with object other than vehicle | 1 |
| 7 | Fall on same level | 1 |
| 8 | Other fall to lower level | 1 |
Why This Matters for Your Case
Employers are strictly required to maintain safe atmospheric conditions and mechanical safeguards under 29 CFR 1910.146 for permit-required confined spaces and 29 CFR 1910.212 for machine guarding. Failure to monitor oxygen levels or secure moving parts like conveyors often constitutes a direct violation of these federal safety standards.
Industries with Most Asphyxiation and Suffocation
Where these injuries occur most frequently
Manufacturing accounts for 28% of severe asphyxiation cases, largely due to the operation of heavy machinery and the use of industrial gases. Health care facilities also face significant risk, where patient-related incidents and physical altercations can lead to sudden strangulation or airway obstruction.
High-Risk Industries and Your Rights
Employers in these sectors must adhere to 29 CFR 1910.147 for the control of hazardous energy and 29 CFR 1910.134 for respiratory protection programs. These regulations mandate that companies provide the necessary training and equipment to prevent workers from being trapped or deprived of oxygen during routine operations.
Real Incident Reports
From actual OSHA investigation files
The documented incident reports reveal a pattern of systemic failure during routine tasks, such as sanitation, maintenance, or patient care. Inadequate lockout procedures and the absence of basic machine guarding are recurring factors that allow minor work activities to escalate into life-threatening emergencies.
"An employee was sanding a piece of concrete in a manhole with a gas-powered saw when they lost consciousness from a lack of oxygen and were hospitalized."
"On December 31, 2023, an employee was performing sanitation on a packer conveyor and was walking in the passageway when their shirt collar was pulled into the conveyor above the passageway. The employee was strangled and became unconscious. The conveyor was not guarded at the time."
"An employee was skiing down a ski run. The employee caught a snow-covered tree branch, fell upside down into deep snow, and lost consciousness due to suffocation. The employee was hospitalized."
"An employee was acting as a fire watch within the engine compartment of a vessel observing the cutting of the hull on the outside. The fire suppression system activated and the employee was trapped inside of the compartment. The employee suffered oxygen deprivation and was hospitalized."
"An employee was preparing a snack for a patient when the patient strangled the employee. She lost consciousness and was hospitalized."
"An employee was performing maintenance inside a furnace when they lost consciousness due to the oxygen-deficient atmosphere. The employee was hoisted from the space and also sustained a leg fracture."
"An employee was drinking water when the cap came off and became lodged in their throat, requiring hospitalization."
"On October 15, 2021, an employee was repairing a leaking steam hose and was trapped between a moving parts hoist and a drip pan in the plating department. The employee was hospitalized, having suffered a lack of oxygen."
"An employee was hauling cotton seed and arrived on-site for a load. When one of the bins would not drop cotton seed, the employee opened the back gate to the trailer and stood on the cotton seed to poke the seed. The cotton seed fell, engulfing the employee. The employee was hospitalized."
"An employee was operating an aerial lift and was elevated 9.5 feet. While traveling backwards, he was pinned between the cage of the aerial lift and overhead structure bracing. The employee's chest/neck area was pinned, cutting off oxygen and resulting in strangulation."
Common Questions About Asphyxiation and Suffocation Claims
The ClaimsBoost Research Team aggregates official government data to help workers understand workplace injury trends and their coverage options.
ClaimsBoost is not a law firm and does not provide legal advice. ClaimsBoost is not affiliated with, endorsed by, or connected to any government agency. Performance scores, rankings, and statistics displayed on this site are calculated by ClaimsBoost using publicly available government data from OSHA severe injury reports. Individual results may vary. Nothing on this site should be construed as legal advice or a guarantee of benefits. If you need legal help, we can connect you with licensed attorneys in your area.Some written content on this page was created with the assistance of AI to help interpret and explain the data. AI can make mistakes — all content has been reviewed for accuracy, but we encourage you to verify any information that is important to your situation.