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Compressed air/pneumatic tool safety
Compressed air is more dangerous than some people might think. Here's why:
Air forced into the tissues or blood stream via the skin can cause an air embolism, which can be fatal if it reaches the heart, lungs or brain.
- Air can enter the body through the pores of the skin
Inflation injuries of the intestine can be caused by air being directed at the anus. This act of horseplay can cause death.
- Air blown into the mouth can, at merely 5 psi, rupture the esophagus, or the lungs.
Eye and ear injuries can occur from a blast of air or flying particles. These types of eye and ear injuries can cause blindness and deafness.
- The sound from a compressed air hose can reach 120-130 decibels, which is well above OSHA’s 90 dB permissible exposure limit.
- 40 psi can blow out an eardrum 4 inches away from the ear, and possibly cause brain damage.
- As little as 12 psi can blow an eye out of its socket.
Flying particles can cause cuts and bruises to any part of the body.
Compressed air safety tips:
- Hoses and lines should always be rated to meet the maximum operating pressure of the equipment.
- Wear proper Personal Protective Equipment:
- Safety glasses with side shields, and preferably a face shield
- Hearing protection
- Respiratory protection, depending on the materials being worked with
- Never use compressed air to clean clothing or hair.
- Never point compressed air at yourself or another person.
- Normal work clothing is not a protection against compressed air.
- Use a vacuum for cleaning instead of compressed air.
Using pneumatic tools safely:
- Read the manufacturer's instructions
- Wear safety glasses
- Set up screens around the work area when there may be flying chips or fragments
- Keep your tools clean
- Do not use an air hose that leaks (replace it)
- Wear hearing protection
- Stop using a pneumatic tool if it leaks air. Have tool serviced or replaced
- Never point the tool at others
- Disconnect the tool before attempting to fix jams.
For more information:
Check out the Compressed Air Safety Fact Sheet to learn more.
Questions? Contact Environmental Health & Safety
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