Depend on which part and which material.
Most of the materials are metal and have no chemical hazards.
The blades are made of composite materials, containing resin and glass fiber. If you are in the blade production workshop and do not pay attention to protection, inhaling these fibers will cause certain damage to the lungs.
For blades that have been formed, this problem does not exist. They have been cured and the outer surface is coated with a protective layer.