[showme]

This type of hood is GREAT! I used this type, only a 3M brand, when working in a lead smelter here in Missouri. When welding in that place, you could get "leaded out", or sent off the job, if your blood-lead count got up too high. This is a "positive air flow" helmet, which means it uses filtered, forced air by way of a battery powered blower/filter which you wear on a belt. And in the summer, (or in a smelting plant, or over a weld), just the constant movement of air is enough to keep you cool. http://www.northernsafety.com/Produ...ety.com/Product/31751/Jackson-Safety-AIRMAX-Welding-PAPR-Complete-Helmet-System This whole system doesn't cost much more than a good hood would, and it beats the heck out of being suffocated by a sealed mask. And you don't have to shave to use it, either.