Treinamento Prot Auricular 1
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Fitting E•A•R® Foam Earplugs E. H. Berger Senior Scientist, Auditory Research
Fitting E•A•R Foam Earplugs
≠
References: AIHA Noise Manual, Ch. 10, p. 398-412 EARLog #19 Tips & Tools for Fitting E-A-R Foam
Otoscopic Inspection around ear • Examine and in earcanal
• How to brace otoscope
• Proper pinna pull and direction to insert tip
• Earlight is excellent alternative
• Need only examine to earplug depth
The Occlusion Effect as a Fitting Aid • Listen to OE using finger
• Fit one ear and listen
• Fit both ears and listen
• Works for earmuffs too
Occlusion Effect (dB)
• “Boom beat”
0.2 cm3
Occluded Volume
300 cm3
Fitting E•A•R Foam Earplugs
≠
References: AIHA Noise Manual, Ch. 10, p. 398-412 EARLog #19 Tips & Tools for Fitting E-A-R Foam
Otoscopic Inspection around ear • Examine and in earcanal
• How to brace otoscope
• Proper pinna pull and direction to insert tip
• Earlight is excellent alternative
• Need only examine to earplug depth
The Occlusion Effect as a Fitting Aid • Listen to OE using finger
• Fit one ear and listen
• Fit both ears and listen
• Works for earmuffs too
Occlusion Effect (dB)
• “Boom beat”
0.2 cm3
Occluded Volume
300 cm3
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