Michelle.

Sure, it'll kill you dead if you breath enough in.

Oxygen is also extremely toxic as well. Too much of that and you'll burn up - literally if you get a spark.

I think we breath in something like 65% hydrogen, the rest mostly oxygen and some trace stuff.

Best,

DD

>Carbon dioxide is toxic? I know it contributes to the greenhouse effect, but I didn't think it was toxic... Or did I just fall for something? :)
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>Michelle
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>>I took a look at the site. I can't say if it's serious or not, but it appears to be serious. If it is, as far as I'm concerned, those guys suffer from paranoia...
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>>While they're at it, they should be concerned by human breathing: we do release toxic carbon dioxyde! :) The only solution: stop breathing!