EEBD and BA Symbol

[aharley]

I do not see any symbol to represent a Breathing A pparatus for firefighting. The only ISO/IMO symbol found is for Emergancy Escape Breathing Device. The captain is insistent there should be an indication of the BAs & their locations in the fire locker. Also the EEBD symbol shows a facemask the ones on-board are mask-less but the BAs have mask and tanks. Should I modify the symbol for the EEBDs or make a symbol for BAs, or use the same symbol for both?
Any Thoughts.