Normfan,
I just can't let this one go without posting a reply.
You mean you do woodworking for a hobby, and when you do, you wear an all over, enclosed facemask type of arrangement with a fan motor on the top which as well as being heavy makes a buzzing noise as well????
I just can't believe that anyone gets any enjoyment out of working like this. Fair enough, if you're spraying laquers or pad sanding without dust extraction it's bound to be a necessary evil but I can't imagine that run of the mill woodworking on a hobby basis deems this sort of thing necessary!
Surely it's a bit over the top isn't it?
I wait to be corrected here mind you, and I'm not in any way having a go.Just seems one step too far in personal protection.
In fairness, you do say you suffer from eye problems so perhaps this is the only way. You must be really keen on this WW lark!!
Regards