Optimaalne kaitsetase on selline, mille puhul IKV-de kasutamisest tingitud piirangud ei takista nende efektiivset kasutamist ohu või tavapärase toimingu sooritamise ajal.
The optimum level of protection to be taken into account in the design is that beyond which the constraints imposed by the wearing of the PPE would prevent its effective use during the period of exposure to the risk or normal performance of the activity.
