howdi lounge.
was in t he er , but because our aparment complex pwer went out. i am on o2 and my concentrator qui working. i switched over to mobile supply and called 911. the ambulance took me to hospital andi was on their supply untill the power came back on. i learned that my type of concentrator can store up to 5 hours of reserve . that is good to know
= new reply since forum marked as read
So glad you got help & are ok!
Have a lovely day! 
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