The Salvus apparatus is a self-contained breathing apparatus in which oxygen is supplied for inhaling and exhaled carbon dioxide is absorbed.
Isixhobo se-Salvus sisixhobo esinebhokisi sona siqu sokuphefumla apho ioksijini inikezelwa khona ukuyiphefumla ngaphakathi kunye nokuphefumlelwa ngaphandle kwekharbon-dioxide efunxiweyo.