Kuti tirarame, tinoda oxygen inobva mumapapu edu ichienda kumasero ari mumuviri wedu. Dzimwe nguva huwandu hweokisijeni muropa redu hunogona kuwira pasi pemazinga akajairika. Asthma, cancer yemapapu, chronic obstructive pulmonary disease (COPD), furuu, uye COVID-19 ndezvimwe zvehutano zvinogona kukonzera mazinga eokisijeni ...
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