Spread out the mask harness (fig.1)
Fitting the mask:
Undo the button from the flap of the forehead strap. take care,
that the buckle of the forehead strap strap is in "normal position"
fitting snugly to the grip flap of the forehead strap, correct
if nesssary. To put on the mask, extend the temple and neck straps
to their limits. Using both handsm spreat out harness so sthat
the neck and temple straps lie between thumb and index finder