I am trying to work out if I have asthma or an allergy. To prove this I have purchased one of the mini peak flow meters (Piko-1) and will monitor my peak flow and my FEV1. I would like to get some more information on what these readings are and there must be a reference chart saying what are the ranges, what is bad,what is normal etc. I am trying to get more information and hoped some one could help
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