The new Noise Exposure Calculator and Hearing Protector Calculator from NoiseMeters are free to use and require no installation - they are web-based applications that run in your browser.
The following applications are available:
These applications, which can assist in your noise at work surveys, are free to use. They provide instant results for all noise exposure and hearing protector calculations and can also print customisable reports.
A comprehensive online help is included to assist in using these calculators and report generators.