The ER9 and RC13 filters do not fulfil the minimum attenuation requirements according to
the EN 352-2. For daily noise exposure levels L
ex
,8
h
of 87 dB(A) (for the ER 9) and 88 dB(A)
(for the RC13), a residual sound level at the ear of L
ex
,8
h
= 79 dB(A) is reached. If the exposure time
is halved to 4 h, a level at the ear of L
ex
,8
h
= 79 dB(A) is also reached for a noise exposure level
of L
A
eq
= 90 dB(A).
The hearing protectors are suitable for 8 h use per day in following areas:
• Swimming pool (except in the machine rooms)
• Fitness Gym room
• Music school teachers except: percussion and brass / wind instruments,
• Individual acoustical musicians, except brass / wind instruments, singers and percussion,
• Pubs
• Restaurants (without loud music)
• Gardening with power tools up till 400 h/yr,
• Call centers
• Aircraft passenger cabin
• Garment Industry
• Laundry Service & Dry Cleaning
• Harbour Outdoor worker
• Forklift driver (without loud background noise)
• Printing Houses except energy supply dept.
• Plastic & Leather Industry.
The typical noise situations in these areas, the daily noise exposure level at the ear L
ex
,8
h
does
not exceed the value of 85 dB(A). Thus a secure protection is generally assured by ER 9 and
the RC 13. For particular cases with unusual loud situations the ER9/RC13 filters may not
be suitable.
In case of any doubt, please contact your supplier or [email protected] for assistance
or further information.
The attenuation of the ER9 / RC13 do not fulfill the EN352 requirement, but do satisfy all relevant
requirements of the PPE directive 89/686/EEC.
The ER9 / RC13 are certified by IFA (Reg.No. 0121), 53757 Sankt Augustin, Germany.
EN
