Personal safety equipment Scientific studies show that stone wool fibres do not harm your health but the use of protective equipment is recommended to avoid skin irritation. Use personal protection equipment that meets your particular needs. Keep your work clothing separate from your other clothing. Wear protective goggles if your eyes are sensitive to dust. This is particularly important when working with overhead insulation. If you wear contact lenses, you should always wear close-fitting protective goggles. Wear a dust mask if the amount of dust is significant – for example during installation of loose fill insulation.