I've just been out sanding the edges of some mouldings and I took the usual dust mask precaution (Moldex 2405 CE121) and I've just blown black bogies!  It wasn't really bad but this sort of thing bothers me.  What mask should I be using?

Wow!  Thats a serious mask.  I've been advised from another site to try an FFP3 where I'd been using an FFP2 previously.

Although the full face mask is a bit overkill, it is cool, and may come in handy in some applications!

I use this one and feel completely safe, you cant smell any dust or vapours what so ever... I polyestered large areas in a pool, where the vapours stay trapped and i was fine for hours in there. They offer a range of different filters.

http://www.arco.co.uk/products/126002/56580/3M+7500+Series+Silicone+Half+Mask+Respirator

Thats a better priced mask.  I'll get some ordered.  Thanks for the pointer.

I use a "3M Vapour Respirator 4251" can pick them up for about £16

I use my SF10 gas mask from my forces era for anything toxicish. Anything really bad i have a full self contained breathing apparatus set up.