What's New with the 'Plus'? The biggest difference between the standard version and the Plus is versatility. While the standard kit gives you one set of filters, the Plus is a full on protection. It includes:
Washington [US], January 10 (ANI): A study led by the researchers of the Institut de recherche en Sante et securite du travail (IRSST) and the Ecole de Technologie Superieure (ETS University) examined the association of structure of ear canals to the different commonly-used models of earplug
Washington [US], January 8 (ANI): Researchers from the Ecole de technologie superieure (ETS University) and the Institut de recherche en sante et securite du travail (IRSST) analysed the varying structure of ear canals to find a correlation between their shapes and the effectiveness of three