Nose clip, part of the kit for the COVID-19 Human Challenge programme by Imperial College London, the Department for Business, Energy and Industrial Strategy (BEIS), hVIVO, and the Royal Free London NHS Foundation Trust, 2020-2021 Nose clip, part of the kit for the COVID-19 Human Challenge programme 2020-2021
Haldane apparatus, portable, glass, in wooden box, with facemask, mouthpiece and nose clip, by Aimer Products of London, from Middlesex Hospital, 1950-1960 Haldane apparatus 1950-1960