This plastic strip, clips onto the loops of the mask and allows the user to adjust the tension of the mask on the face. An additional benefit is that by clipping the mask loops into the extender, the irritation of the loops pulling into the ear lobe skin is significantly reduced. Multiple clipping spots along the Extender accommodates for different head dimensions.
Comes in a pack of 10 so you can share with staff and family.
Also recommended to use with the 3D Mask holder