Mechanmed oo ah mid xirfad-yaqaanno u soo saara oo aad u sarreysa oo soo saare iyo alaab-qeybiye Shiinaha, dhammaan qeybta sare ee Oxygen ayaa ka gudbisay heerarka shahaadada caalamiga ah ee warshadaha caalamiga ah, oo si buuxda ayaad u hubin kartaa tayo. Haddii aadan ka helin cutubkaaga oksijiinka ee aadka u sarreeya ee aad ku leedahay liiskayaga badeecadaheena, waad nala soo xiriiri kartaa, waxaan ku siin karnaa adeegyo gaar ah.