recommended dust masks

I cannot help with the mask but my solution is to put a small drop of washing up liquid on a tissue and wipe this over the inside of the lens. Give it a few moments and polish it off with a tissue. If you 'huff' on your glasses they should not now mist. To clean it off just run under a warm water tap and dry. This may make a small amount of dust stick to the glasses so make sure you rinse them thoroughly before drying.

Trevor

I have one like this:

Nothing should come out near the eyes if it's properly sealed to your face. It's a bit awakward with specs though, since the mask sits quite high on one's nose. It can be done.

I use one of these:

plus, for the eyes and face:

(or similar - not sure if mine is that exact model or not).

Have always worn glasses, so have always had the misting problems - and this (wearing both the above) is the first time I have felt both comfortable and reasonably well protected.

In article , Broadback writes

A mask with an exhaust valve will be better, the moist air you breathe out will be more likely to go out the front rather than escape upwards, past your nose to steam up your glasses. A good soft wire nose bridge that will shape to your nose will help to.

I've used 3M 9312 (P1 - nuisance dust) masks in the past and liked them:

Toolstation seem to have valved ones a bit cheaper:

These are very good as well:

I have the same problem. I wear mostly three masks:

The 3M "paper" disposable P1, as mentioned

Mil-surplus Avon S10 mask (standard Brit army kit) if I need gas-proof eye protection. Works fine with glasses (although strictly shouldn't for NBC use). Filter thread is standard and parts are cheap and easy to replace.

....and these are the only kind I have found to work with a beard. (There was method in the RAF not allowing air crew to have more than a moustache!)

Thanks for your help, I have now purchased a few disposable 3Ms from a local supplier. More expensive than on line, but the postage costs have got a little silly, puts the price up too much unless you make a large order.