Fiberglass safety is an important topic for anyone who works with or around this common material. While fiberglass is widely used for its strength, durability, and insulation properties, it can also pose health risks if not handled properly.
Fiberglass, often called glass wool or fibrous glass, is made up of tiny glass fibers combined with other materials. When workers sand, cut, saw, chop, or trim fiberglass, it releases dust filled with these fibers. Once airborne, the fibers can enter the eyes and lungs, creating serious health risks for anyone exposed.
OSHA recommends that workplaces do not expose employees to more than 15 milligrams per cubic meter of fiberglass dust in one 8-hour work shift.
Hazards
Large fiberglass fibers can potentially irritate the eyes, skin, and upper respiratory tract. This material also poses other health risks to exposed employees. If the fibers become embedded in the skin, a rash may develop.
Smaller fibers could enter the lower part of the lungs, increasing the risks associated with exposure. Inhaling the fibers can irritate nasal passages and the throat. Swallowing fibers will increase the risk of stomach irritation.
Fiberglass Rash
A fiberglass rash commonly looks like a patch of small blisters with dry, flaky skin. The extent of the rash depends on 3 things, such as:
- How deep the fibers are penetrating the skin
- The fiber's thickness and length
- And, environmental factors, such as humidity or heat
Regulations
OSHA requires fiberglass products to carry warning labels stating that fibrous glass is a respirable fiber and a potential carcinogen. Employers must also keep Safety Data Sheets (SDS) for every fiberglass product in the workplace, providing guidance on safe handling and emergency procedures.
Safe Practices
When working with or around fiberglass, there are a few safe measures that can ensure the safety of employees, including:
- Wearing loose-fitting clothing
- Cleaning fiberglass contaminated surfaces with a wet cloth or vacuum
- Avoid rubbing your skin, eyes, or mouth
- Ensuring the area is well-ventilated prior to entering
- And, only using power tools with a built-in dust collector
Removing Fiberglass
Employees may be able to remove larger fiberglass particles from their skin on their own by following these steps:
- Wash the affected area gently with running water, then pat it dry with a clean towel
- Place a piece of tape over any visible fibers protruding from the skin
- And, carefully peel the tape off to lift the fibers away
This method can help remove larger fibers from the skin’s surface, but it may not eliminate all fibers, especially smaller or deeply embedded ones. To prevent further irritation, avoid scratching or rubbing the area, as this can push fibers deeper into the skin.
Personal Protective Equipment (PPE)
Prior to handling any fiberglass materials, workers should wear appropriate PPE, such as:
- Protective goggles
- Long pants
- Nitrile rubber gloves
- Socks and boots
- Long-sleeved shirts
- And, NIOSH-approved N95 particulate respirator
OSHA recommends wearing loose, non-restrictive clothing to reduce direct skin contact with fiberglass particles. After working with fiberglass insulation, remove your clothing and wash it in a separate load to prevent contamination, as fiberglass particles can cling to fabric for several days.
For additional guidance, visit OSHA’s resource on Fibrous Glass Dust.
Conclusion
Fiberglass is a versatile and widely used material, but working with it safely requires awareness and the right precautions. By wearing proper protective equipment, following safe handling practices, and maintaining good hygiene, workers can greatly reduce their risk of irritation and long-term health effects.
