Sometime back I asked about smoke hoods and what everyone was using, since Evacu8 went belly up. Lots of very expensive answers. I did a search but couldn't find any discussion in this forum of this product: http://www.technonllc.com/pd1# Technon's Breath of Life mask, $30, very compact package, 15 minutes of air. Any comments on this? Seems too good to be true, but maybe the technology has moved on.