While you may or may not want a Field Protective Mask(gas mask), some type of filtering mask could come in real handy if you live in an area prone to large wildfires. In 2004(I think this is correct year) folks in the Fairbanks area of Alaska were subjected to heavy smoke concentrations for several continous days. This became a real health issue for folks that suffer from Asthma, etc. My daughter in law lives there and said it got to be a problem obtaining any type of filtering mask from the local stores.

I am aware of two masks designed for wildland firefighters. One has the name Hot Shield and the other is named Whiffs. They are aviable from wildfire equipment suppliers.

A set of goggles could come in handy with the mask in some siturations.