While doing noise surveys in industries I am seeing different types of ear defenders in use. I find that most of them do not serve the purpose and gives a false sense of protection to the user. This practice has to stop. In selecting ear defenders one should have thorough knowledge on the prevailing noise conditions, available ear defenders in the market , its usefulness and so on. Let us have a discussion on this serious issue.
Kesava Pillai 22nd October 2018 From India, Kollam