What is the correct way to wear hearing protection?
Reach over your head with a free hand, pull your ear up and back, and insert the earplug well inside your ear canal. If properly fitted, the end of the earplugs should not be visible to someone looking at you from the front. Hold for 30 – 40 seconds, until the earplug fully expands in your ear canal.
What is the rule of thumb for when you should wear hearing protection?
A good “rule of thumb” for determining if your work area or activity requires hearing protection is as follows. If you have difficulty hearing or understanding a “normal” tone of voice at a distance of about three feet, noise levels are probably exceeding safe levels and you should be using hearing protection.
When should you use hearing protection?
Personal Protective Equipment (PPE)
NIOSH recommends that workers shall be required to wear hearing protectors when engaged in work that exposes them to noise that equals or exceeds 85 dBA as an 8-hour TWA.
How long will it take for your hearing to be damaged without hearing protection?
Damage can occur within the ear at noise levels similar to that of running a lawn mower for eight hours. At first, this may cause a temporary loss of hearing that may last as long as 14-16 hours.
How quiet is 40 dB?
Comparative Examples of Noise Levels
|Noise Source||Decibel Level||Decibel Effect|
|Library, bird calls (44 dB); lowest limit of urban ambient sound||40||One-eighth as loud as 70 dB.|
|Quiet rural area.||30||One-sixteenth as loud as 70 dB. Very Quiet.|
|Whisper, rustling leaves||20|
At what volume does hearing damage occur?
Sound is measured in decibels (dB). A whisper is about 30 dB, normal conversation is about 60 dB, and a motorcycle engine running is about 95 dB. Noise above 70 dB over a prolonged period of time may start to damage your hearing. Loud noise above 120 dB can cause immediate harm to your ears.