Poster — Thur Eve — 68: Assessment of post‐fabrication deformation in three styles of thermoplastic masks

This work assesses the post fabrication shrinkage of 3 styles of Aquaplast Slimline U‐Frame thermoplastic masks: Aquaplast RT (Aqua S); Fibreplast (Aqua KS) which is similar to Aqua S, but contains Kevlar for improved rigidity and reduced shrinkage; and Aquaplast RT Variable Perf (Aqua YS) which is similar to Aqua S but excludes perforations along various bands for improved strength. Each mask was formed over the same rigid anthropomorphic head …