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Assembly/Wearing Instruction
1. Ear Muff Assembly: Insert the tongue of the ear muff into the slot,
located at the side of the helmet.
3. Resting Position: Pull the ear muff away from the ear until it locks into
position. In the resting position the distance from the ear is far enough to
prevent "echo noise" when communicating. In noisy surroundings, always
wear the ear muffs in working position.
5. Storage: When the helmet is not being used, pull down the ear muffs
and press inwards. Store the ear muffs somewhere clean and dry at
normal room temperature in a uncontaminated area where they are
unlikely to be damaged.
3
Occupational Health Group
3M United Kingdom PLC
3M Centre
Cain Road, Bracknell
Berkshire RG12 8HT
Tel: 0870 60 800 60
www.3m.com/uk/ohes
ohes.helpline.uk@mmm.com
Occupational Health Group
3M Ireland
3M House, Adelphi Centre,
Upper Georges St.
Dun Laoghaire, Co. Dublin, Ireland
Tel: 1 800 320 500
2. Working Position: Adjust the cups aligning the height of the cups making
sure the cup covers the entire ear. Be careful that the cushions seal firmly
against the head with no interference from objects such as respirator
headbands or arms of glasses, in order to obtain the best performance.
4. Parking Position: To store the ear muffs on the helmet, just pull them
into resting position. Then rotate the ear muffs upwards until they lock
again. The cushions will not be damaged and the muffs can dry while in
this position.
Warnings
1) The arms are made of Acetal and the cushions are made of
PVC. This product may be adversely affected by certain chemical
substances. For further information contact 3M.
2) Ear muffs and in particular cushions, may deteriorate with use
and should be examined at frequent intervals for cracking and
leakage, for example, at the start of every shift.
3) Simplified Noise level Reduction (SNR) is based on the
attenuation of continuous noise and may not be an accurate
indicator or protection attainable against IMPULSE noise such as
gunfire.
4) For noise environments dominated by frequencies below 500 Hz
the C-weighted environmental noise level should be used.
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