♦ Amerika USA Ikoranabuhanga rya PSA, tanga umwuka wa ogisijeni
♦ Ubufaransa bwatumijwe mu buriri bwa molekile
Technology Tekinoroji ya ogisijeni isumba iyindi
Design Igishushanyo mbonera cyerekana uburemere n'uburemere bworoshye
Size Ingano nto kandi nziza yo gukoresha murugo