As the subject has returned to OA, I thought that some may like to know what
I purchased regarding my request for mask info.  I contacted many beekeepers
before contacting 3M and the following is what was recommended for
vaporising.
3M 6800 full face mask (CAN$123)   Organic vapour cartridge 6001 ($9 pr.)
Pre filter 5N11 ($3 pr.) and 2 plastic retainers at $1.75 each.

I haven't used them yet ( haven't wrapped the hives yet either!). But 3M
said that the full face protects better than mask and goggles and is more
comfortable. With the recent remark about beekeeper deaths, I feel that I am
not exaggerating regarding protection.
Peter

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