michaeldr, on 02 May 2012 - 12:33 PM, said:
Most of the masks given out in Palestine were found to be defective, and all the containers were obsolete.
Sheffy has "At the beginning of the battle [Third Gaza] each of the combatants carried his mask, mostly of the advanced SBR (Small Box Respirator) type of which at least 150,000 had been hurriedly rushed from England."
That was a direct quote from the 74th Division History.
Perhaps someone with access to the Division, Brigade or Battalion war diaries could do a look up for May 1918 to see if the quote was factual.