Frequently Asked Questions

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What level of training is needed for a confined space?

Workers must receive confined space awareness training to recognize hazards. Those entering permit-required confined spaces need confined space entry training, while rescuers require additional specialized training.
What is the gas limit in a confined space?
OSHA gas limits in confined space are as follows:
- Oxygen levels: 19.5%–23.5%
- Flammable gases: Below 10% of the lower explosive limit (LEL)
- Toxic gases: Below permissible exposure limits (PEL)
What 3 things define a confined space?
According to OSHA, a confined space should have following characteristics:
1. Is large enough for a worker to enter.
2. Has limited entry and exit points.
3. Is not designed for continuous occupancy.
What is the oxygen limit in a confined space?

For safe entry, oxygen levels must be between 19.5% and 23.5%. Levels below or above this range pose serious health and safety risks.

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