Face Size and Shape

Face size and shape are important considerations when selecting RPE. The mask must fit the wearer’s facial features to create a seal and provide protection. Respirators are available in a range of sizes to fit different facial dimensions. To ensure a good fit, face shape and size must be considered and, if possible, measured prior to selection.

Respirator sizes are based on dimensions given in international standard ISO 16976-2, Anthropometrics. Five headform sizes are described in the standard: Small, Short-Wide, Medium, Long-Narrow, and Large.

The five headforms are derived from measured facial dimensions of human test subjects and are used for designing respiratory protective equipment as well as helping with selection. Respirators are designed to fit specific size designations and are tested on the relevant headform size.

Size Selection Guide

Force® Size Guide is available to measure facial dimensions in order to check whether a Small (S), Medium (M), or Large (L) mask would provide the best fit.

The Force®8 half mask and Force®10 Typhoon™ full face mask are available in Small (S), Medium (M), and Large (L) sizes to provide a great fit for a wide range of users.

The Force®8 half mask is available in an additional size, Short-Wide (SW), which provides an alternative fit to Small (S) and Medium (M) masks. The Force®8 SW is designed to fit a different facial profile with a slightly wider nose bridge. Have any more respiratory protection questions? Take a look at our respiratory protection faq! Find out more about our range of respiratory protection. Take a look at our new respiratory guide.