The Rethink Reusable Surgical Mask™ (Type I) is a full-fledged surgical mask that meets international performance requirements for Type I surgical masks, including ≥ 95% bacterial and particle filtration efficiency and high breathability ( < 40 Pa/cm2). The important difference between this mask and single-use alternatives is that the mask uses state-of-the-art nanofiber filters that can be used 10 times with simple hot water disinfection between uses. This revolutionary capability reduces cost of use, whilst reducing logistics and PPE waste volumes by 90%. The 3-month Set includes a carrier mask and 9 nanofiber filters that ensure medical grade mask performance for at least 90 days. This tiny package (20.5 cm (L) x 13.5 cm (W) x 1.5 cm (H)) weighs only 28 grams.This is a proudly African innovation and is manufactured and shipped from Cape Town, South Africa. This further reduces shipping costs and lead times.