Product Warranty

3M
™
WorkTunes
™
Hearing Protector User Guide 16
Fitting Instructions
Improper fit of this device will reduce its
effectiveness. Fit your earmuff before entering
a hazardous noise area.
• Place the earmuff on the head with the
band at the crown (top) of the head
• Pull out the cups and place the hearing
protector over your ears so that the ear
cushions fit snugly
• It is important that the cups fully enclose
the ears and that the cushions exert equal
pressure around the ears
• Adjust the height of both cups for comfort
and a good seal – do this by sliding the
cup up or down while holding the
headband in place
• Do not store the hearing protector at
temperatures above 131°F or 55°C
(for example, behind a windshield or
in a window)
Fit
Important!
For proper fit, ear cushions should seal
firmly against the head. Anything that
interferes with the seal such as long
hair (pull back to the extent possible),
thick or poorly fitting eyeglass temples,
pencils or caps will lessen the earmuff’s
effectiveness. Do not bend and reshape
the headband as this will cause a loose
fit and sound leakage.