A bagpack stuffed with books and exam reminders can give you nightmares but what about one that gives you oxygen? People who never thought of that possibility need to see O2 Bag to believe it. As the name suggests, this bag contains a battery-powered oxygen generator which ensures steady flow of oxygen at all times. It’s a perfect companion for mountaineers, those suffering from emphysema and those living at higher altitudes. Priced between $880 and $1,150, I preach that survival is dearer than some extra bucks?

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