Quoted from Wolfmarsh:Thanks vid!
What about something like this?
amazon.com link »
Looks great.
Although the NPO SAR 101 is much scarier looking, nuclear rated, and only $69
If your wife likes to roleplay......
s-l400 (resized).jpg
ebay.com link: Nuclear Power Outfitters SAR101 Supplied Air Respirator NPO SAR 101 Bubble Hood