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My candles disappeared!!
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2018-06-02, 7:31am
echeveria
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Join Date: Aug 31, 2006
Location: Knoxville, TN
Posts: 2,210
It is possible that your concentrator is only putting out air, and that the oxygen is not sufficient to burn. Do you have a propane flame? Is there anywhere nearby that can test your oxygen purity on the concentrator?
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Kathy
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