The free online tool allows users to input their own data to select an appropriate filter for their specific environment. The calculator has a comprehensive database of respiratory hazard data to enable appropriate filter selection and recommends compatible equipment to ensure the user has all information required for adequate protection.

Importantly, the tool also indicates where filter-based respiratory products are not suitable, for example where breathing apparatus is required in oxygen-deficient atmospheres.

The product selector guides the user through the suitability of work environments, the types of dusts, fumes or mists present and the contaminants likely to be encountered. The calculator then allows the user to select input exposure limits before it identifies what type of filter should be used.