terry i have masks the same as that but trust me they are not fine enough to stop the fumes getting through..
i think barry ment something like this..
http://www.professionalequipment.com...qx/default.htm
which works out at £13.88 which isnt that bad a price!!!
it either get one of them or make a propper exctractor systep. im sure the mask would be cheaper....but then again having to replace the filters an extraction system may be cheaper in the long run....
still waiting for nigels input....