Veturi Mask With 2 Diluters

·     Made of clear, non-toxic PVC

·     Two color coded diluters for seven concentration  

·     Green diluter for 24%，26%，28%，30%  

·     White diluter for 35%，40%，50%  

·     Adjustable nose clip

·     With lock and adaptor for high humidity

        With 2m anti-crush tube