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  Noise Hazard
1.How loud is it? - (I) See our simplified noise thermometer (465k)  
2.How loud is it? (II) The Noise Navigator® database of over 1700 noise sources. (878KB)  
3.How does noise cause hearing loss? (0.01MB)  
4.Gunfire - How dangerous is it to my hearing? (44k)  
5.The 'noise pill' - Will it protect me from hearing loss? (56k)  
6.Loud music, exercise, and its effects on hearing (92k)  
7.Automotive airbags - Can their deployment cause hearing loss? (24k)  
8.Is my personal music player (MP3) hurting my hearing? (4.89MB)  


Hearing Protection
1.Fit testing - how do I do this in the workplace? (0.12MB)  
2.PAR - What does this fit-testing rating mean? (0.28MB)  
3.Dual protection - What can I gain from wearing a plug and a muff together? (69k)  
4.What type of hearing protector blocks out the most noise? (0.1MB)  
5.Air travel - Use of earplugs in airplanes (89k)  
6.Children - Hearing Protection / Swim Protection (0.05MB)  
7.Comparing hearing protector ratings - NRR, SNR, SLC, and others (168k)  
8.Tinnitus - Hearing protection recommendations (43k)  
9.What does the caution statement on hearing protector packages about frequencies below 500 Hz and the use of “C-weighted environmental noise levels” mean? (42k)  
10.Noise-cancellation earmuff - Is there a type that might help someone wearing hearing aids and working in noise? (56k)  
11.Can any protector block all sound? (69k)  
12.Foam earplugs - How long can I use them and can they be washed? (67k)  
13.Foam earplugs - Who invented them and when were they introduced? (1.5MB)  
14.How much attenuation is lost by wearing hairnets or disposable protective hoods underneath my earmuffs? (0.35MB)  
15.Are custom earplugs the best fitting and protecting type of earplugs? (105 KB)  
16.Do non-electronic “valve-type” earplugs like the Combat Arms earplug really work? (335 KB)  


Sound, Sound Measurements, and General Topics
1.dBA and dBC? - What do these terms mean? (113k)  
2.What criteria should a professional reviewer use to revise baseline audiograms when an STS is detected? (The attached guidelines from the NHCA are current, but are being reviewed for possible updating at this time.) (664k)  
3.How do I correctly measure sound exposures from iPod® -like devices? (0.09MB)  
4.Can hearing aids bring my hearing back? (0.01MB)  

 

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