Mask Size Guide
Small
To fit a child up to 9 years 15cm x 6.5cm (expandable in the centre up to 14.5cm).
Medium
To fit a large child/ young adult 16cm x 8cm (expandable in the centre up to 16cm).
Large
To fit a medium / large adult 17cm x 9cm (expandable in the centre up to 17cm).
