♦ Yamukelwe ubuchwepheshe base-USA, i-compressor engenawoyela engalungiswa.Umsindo ophansi, isisindo esincane, izinga lokushisa eliphansi likhuphuka kanye nokusebenza kahle okuphezulu
♦ Ithathwe yiFrance isisefo se-molecular.Ubuchwepheshe bokugcwalisa obukhethekile obuhambisana nokumuncwa okunengqondo, ukwakheka kwesakhiwo sombhoshongo kanye nokuphathwa kokukhiqiza okuqinile ukuze kuqinisekiswe
♦ Kunesiqinisekiso sezinga lesi-5 sokuhlunga ukuthi ukuhlanzeka kwe-oxygen kufinyelele ezingeni lezokwelapha ku-concentrator ye-oxygen.