Specifications

venturi mask with CE 0123 and ISO 13485 certificate can do OEM
tube 2m, with joint. adjustable nose clip with elastic strap

Size: S, M, L, XL

ft simple delivery of variable oxygen concentrations

 2.features Six colors diluters, the oxygen concentration 24% (blue), 28%(yellow), 31%(white), 35%(green), 40%(pink), 50%(orange) 
 3,kit includes mask, high humidity adaptor, oxygen tube abd six color-coded diluters