"Cleaning products" = disinfectants.
Peter Capaldi was credited as W.H.O. Doctor in World War Z (2013). He portrayed the twelfth incarnation of the Doctor in Doctor Who (2013–2017).
In World War Z, Lane and the W.H.O. doctors develop a new "vaccine," derived from deadly pathogens, and widely issued to survivors around the world battling or taking shelter from the infected, acting as a kind of camouflage. The vaccine also helps survivors to reach quarantine zones.
I enjoy the wonderful coincidence that the day before the Naval War College received my and Joe Nickell's presentation on the strategic informing of the future via cryptozoology, the special committee who listened to us also heard from Max Brooks, the author of World War Z.
Southmedic Inc. announced that the OxyMask is featured in a new Brad Pitt movie hitting theaters on September 20, 2019. Only it's second appearance in films.