I find it disturbing that the EVACU8 had a design flaw that took 6 years to catch. This goes to show you that it is always a good idea to test the things we depend on and not rely on manufactures claims. What if you were caught in a fire and needed to EVAC and this device failed? At work we use ELSA packs which are good for 10 min. but they are bulky and not practical to carry around. I know in diving we have spare airs and I went with a 30 cuin bottle to give me more time. I got 30 minutes in a pool one time playing around with it. I breath off it always before a dive and refill it off my main and then refill my mains at the dive store.

RECALL NOTICE : In March 06 the manufacturer of these Smoke Hoods announced a recall on units sold between approx Sept 2000 and March 2006. If you bought a unit between those dates, contact the manufacturer to arrange for your unit to be exchanged.

http://www.thetravelinsider.info/travelaccessories/evacu8smokehood.htm
http://www.evacsafety.com/recall/Safety_Notice.html

Tests confirmed that use of these products in a smoke or fire emergency may expose the user to harmful carbon monoxide, which could seriously compromise their ability to escape a fire threat. Therefore, these products SHOULD NOT BE USED. The company is not aware of any incidents where a user of these products was exposed to harmful levels of carbon monoxide.