Glass fiber itself is not toxic, but the woven mesh trimming process produces glass dust. If long-term toleration, you will have lung problems. You should wear a dust mask in dust wroking environment such as dip and lime. If necessary, you should also wear gloves.
You should check your lung and wear a dust mask while working.
Glass silk, or glass fiber, is nontoxic. But once inhaling small fiber powder, you will get pneumosilicosis that is the special occupational disease in silicate industries like glass, cement and porcelain. If you are engeged in the above indtries, you should wear a dust mask and have periodic physical examinations; enterprises should take strict safegaurd measures according to related institutions.
