Hearing Protector Device Compendium
October 2012
DHHS (NIOSH) Publication Number 2012-178

Note: This fact sheet about the NIOSH Hearing Protector Device (HPD) Compendium is not relevant because the Compendium is no longer available.
The Hearing Protector Device Compendium is a comprehensive searchable database of commercial hearing protection devices. This unique Web tool was created by the National Institute for Occupational Safety and Health to help workers and safety professionals select the most appropriate product for their unique environment.