Dust mite: I presume you are talking about dust mite allergy. First you will not find dust mites outdoors or in very dry climate- they cannot thrive at under 50% RH or reproduce under 65% and will be killed by sunlight exposure. However if you have asthma, it is the asthma which must be controlled before contemplating any prolonged and strenuous activities.
Answered 5/16/2017
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