Where can I find a used/rebuilt Airsep Freestyle portable oxygen concentrator on the cheap? [more inside]
posted on Jul 10, 2008 - 2 answers

Oxygen. In a can. At a convenience store. Would you try it? Why or why not? Is it safe, does it do any real good? Bonus points: Would it help migraine headaches?
posted on Apr 28, 2008 - 20 answers

Do we lose weight just by breathing? [more inside]
posted on Feb 21, 2008 - 9 answers

Pulse-Ox monitors (the little dealies that fit over your finger and measure oxygen saturation in the blood). Need to buy one for an asthmatic person. What are reputable brand names, places to order, etc? I'm in Canada, so shipping availability to Canada is essential (if ordered online), or local resources in Toronto.
posted on Jan 15, 2008 - 7 answers

I want a cheap 49 or 61 key USB MIDI keyboard for under $300. M-Audio Oxygen or E-mu Xboard? [more inside]
posted on Jan 4, 2008 - 5 answers

Not to start a fight but I am curious about this one...If the entire atmosphere is 100% and nitrogen is 89% and the inert gases are 0.9% and the rest is the O2 we breathe and more and more CO2 is being made [carbon burning made that is] from that O2 and not going back out of the system as released O2 will we see a drop in the amount of O2 we have to breathe? Does the actual % of the various gases get checked on by anyone? And would we see it first decline at higher altitudes or in the deaths of animals who need more O2 for their specific needs..........which ones are the mine canaries here?
posted on Dec 14, 2007 - 12 answers

I'm working to transfer a person on oxygen from San Diego to Oregon. It's a long trip and this person is mostly wheelchair bound. Overexertion causes breathlessness and anxiety. We are trying to effect this ourselves and the oxygen is proving the most problematic. At 12 liter flow, getting enough oxygen is a major technical issue if moving by vehicle. We're talking a 3 day trip with a stop halfway in Watsonville for a day. [more inside]
posted on Dec 13, 2007 - 15 answers

Given an airtight room with bright enough lights to fuel photosynthesis, how many plants would it take to provide an average person, at rest, with sufficient oxygen (assuming it is possible at all). [more inside]
posted on Jan 12, 2006 - 7 answers

I drove for about nine months on a bad oxygen sensor. Will my car suffer any long-term ill effects? [more inside]
posted on Oct 8, 2005 - 12 answers