Canalphones
– those that fit directly into the ear channel
– are probably the best choice if you want to cut out peripheral noise.
When these headphones are used in a very noisy environment they are much safer for the user since the volume does not have to set very high.
The canalphones cut out much of the background noise thereby alleviating the need for volume which potentially could damage the listeners hearing.
Imagine having to communicate with colleagues in an airport. The background noise of airplanes landing and taking off is incredible and the volume would have to be set at excruciatingly painful levels.
Then imagine this going on 10 hours per day every day. The hearing of the listener would surely be damaged very soon.
Or what about that busy sales office with phones, people and copy machines clattering away all day. The canalphone allows the listener to set the sound at a comfortable level without damage to the eardrum.
The canalphone is also good for home use. If the kids are noisy, the TV on, the vacuuming being done, you can shut yourself off from all of this noise and listen to that seminar that...