Fitting Instructions
1. Unfold ear muffs. Adjust headband to its lowest position.
Place the headband on top of the head.
2. Pull the cups outward and position the ear muffs over your
ears until ear is completely inside cup. For maximum protec-
tion, position smaller end of ear cup in upward position.
3. Adjust the height of the headband so that it rests comfort-
ably in desired position. Be sure the cushions are seated
firmly around the side of the head and ears.
CAUTION
• Spread the ear cups only enough to clear the ears.
• Do not reform or reshape the headband.
• Foreign objects (such as pencils) between the ear cup and
wearer’s head reduce the efficiency of the ear muff. Remove
as much hair as possible. Use glasses with smallest temple available (cable
type is best).
Information required by EPA
The level of noise entering a person’s ear, when hearing protector is worn as
directed, is closely approximated by the difference between the A-weighted
environmental noise level and the NRR.
Example:
The environmental noise level as measured at the ear is 92 dB(A). The NRR is
24 decibels (dB). The level of noise entering the ear is approximately equal to
68 dB(A) for over head position [92-24 dB(A)].
CAUTION
For noise environments dominated by frequencies below 500 Hz the C-weight-
ed environmental noise level should be used.
WARNING
Although hearing protectors can be recommended for protection against the
harmful effects of impulsive noise, the Noise Reduction Rating (NRR) is based
on the attenuation of continuous noise and may not be an accurate indicator of
the protection attainable against impulsive noise such as gunfire.
Wearing this product for protection against impulsive noise such as gunfire
may still result in hearing loss. Impulsive noise is defined as noise levels having
peaks at intervals of greater than 1 second. There may be conditions under
which impulsive noise exists and many differences in the tolerances of various
users. For this reason, there is no accepted way to determine if any hearing
protective device provides adequate protection against impulsive noise.
The EPA has selected the NRR as a measure of a hearing protector’s noise
reducing capabilities. There is no warranty as to the suitability of the NRR as a
measure of actual protection since such protection is highly dependent on user
training, motivation, and utilization. Consult the above instructions for proper
fit. A better estimate of workplace protection can be obtained by derating the
labeled NRR of this, or any other hearing protector, by 50%.
Maintenance and Cleaning
1. Ear cushions and foam pads may deteriorate with use and should be
examined frequently for cracks, tears, etc.
2. Clean the ear muffs after each use with a lint-free cloth with mild soap (no
detergents) and warm water solution. Do NOT totally immerse ear muffs
in water. Do not use abrasive brushes or materials, which may damage the
foam pads or ear cushions. Use only cleaning agents that are known to be
safe to the wearer.
Storage
Store ear muffs in a clean and dust free place when not in use. Safety Works
recommends using the reclosable package the ear muffs came in for storage.
Instructions d’ajustement
1. Dépliez le casque antibruit. Ajustez le serre-tête à sa
position la plus basse. Mettez le serre-tête sur la tête.
2. Tirez les coquilles vers l’extérieur et placez le casque
antibruit sur les oreilles de manière à ce que les coquilles les
recouvrent complètement. Pour une protection maximale,
placez la petite extrémité de la coquille en haut.
3. Ajustez la hauteur du serre-tête de manière à ce qu’il repose
aisément à la position souhaitée. Assurez-vous que les
coussinets reposent fermement autour de la tête et des
oreilles.
MISE EN GARDE
• N’écartez les coquilles que de la largeur nécessaire pour les
placer sur les oreilles.
• Ne reformez pas ni ne reprofilez le serre-tête.
• Les corps étrangers (comme des crayons) placés entre la coquille et votre
tête réduisent l’efficacité du casque antibruit. Retirez autant de cheveux que
possible. Utilisez des lunettes avec des branches aussi minces que possible
(le type cordon est le meilleur).
Renseignements requis par l’EPA
Le niveau de bruit entrant dans l’oreille d’une personne, lorsque le protecteur
auditif est porté correctement, peut être fixé approximativement en soustrayant
du NRR (indice de réduction du bruit) le niveau de bruit ambiant pondéré en
dB(A).
Exemple :
Le niveau de bruit ambiant tel que mesuré au niveau de l’oreille est de 92
dB(A). Le NRR est de 24 décibels (dB). Le niveau de bruit entrant dans l’oreille
est d’environ 68 dB(A) pour la position sur la tête [92-24 dB(A)].
MISE EN GARDE
Dans le cas d’un bruit ambiant dont les fréquences principales sont inférieures
à 500 Hz, utilisez le niveau de pression acoustique pondérée en dB(C).
Foldable Ear Muffs
Pliables Cache-Oreilles
Se Dobla Orejeras
P/N SWX00115
2001490 Rev 4 1511
