Measure of protection
April 1st 2008 E.A.RFit hearing protection
validation system from E.A.R
enables employers to know
the level of protection
workers are receiving
personally and does not rely
on other people's statistical
data.
Each ear canal shape is
different and fitting
techniques vary. This can
result in different protection
levels for each worker.
E.A.RFit documents each
worker's Personal Attenuation
Rating in minutes. The test
can be performed on a
variety of E.A.R hearing
protectors, including Classic,
E.A.Rsoft and UltraFit.
E.A.RFit is an F-MIRE
(field-microphone-in-realear)
test system with dual
element microphone
measuring sound inside and
outside the ear. It takes 8sec
to get data at seven standard
(125 to 8000Hz) frequencies. More articles from Aearo Technologies: | 
