Longfian tuaj yeem tsim tau 1-60L oxygen oxygen concentrator rau qhov chaw siab siv ntau uas yog ntau tshaj 1000m.
Lub 1-10L oxygen concentrator tuaj yeem ua rau ib tus neeg siv lub tshuab raj ua kua ntswg.
Lub tshuab ua pa 10-60L oxygen tuaj yeem tsim rau hom tsis zoo siv rau chav siv, feem ntau yog rau chaw ua haujlwm, tsev kawm ntawv, tsev, chaw ua haujlwm hauv tsev so thiab lwm yam.
Lub tshuab oxygen ua rau koj mus nyob hauv cov pa ntawm qhov chaw siab.
