BREATHABLE TRAINER FABRIC
Cherry mask, £21.09, notjustclothing.co.uk
MADE from Diolen, a breathable woven cloth. NUMBER OF COLONIES: 28 PERCENTAGE BLOCKED: 57 VERDICT: The maker likens this fabric to the breathable material used in trainers. The mask is comfy, but scores fairly low. And the care instructions say to wash at 40c, while general advice is that 60c is best.