Bests & Worsts Reviews from Amazon

I am a COPD sufferer who was afraid to take the leap to supplemental oxygen but have suffered many scary flare-ups late at night with no one around. The BOOST Oxygen cans (though medically not a replacement for supplemental oxygen) do give me peace-of-mind in emergency flare-ups. I read from another reviewer to exhale two times very deeply (if time and health permit) then draw in on the BOOST while inhaling. Keep the oxygen in your lungs as long as comfortable then exhale. Repeat once or twice. This system works for me and quickly restores me from a flare-up. At present the two-can packs are the best price-per-can (a liitle over $6 from one of the other sellers listed on the righthand side of the page) so I order two or three sets and keep them in various rooms wih back-ups, just in case. I number the cans with a magic marker to keep them straight. One final note: The cans when full feel totally empty as O2 has no real weight. I was surprised at first but then it made perfect sense. I hope this product can help you as much as it did me.