User- Friendly:the Replacement Kits Has A Switch To Control Air Flow, According To Different Breathing Between Adults And Children
Comfortable Mask:it Is Made Of Soft And Clear Plastic And Equipped With Elastic Band,which Will Not Cause Discomfort On Your Face
High Quality:made Of High Quality Material,latex-free,no Smell,durable And Compact
Easy To Use:the Standard Size Tube Is Easy To Stall And Suitable For Universal Fit
