Positive: Distinct color bands appear in both the Control and Test Zones

Responds quickly to exhaled CO2 with a simple color change from purple to yellow

Graduated barrel markings

Designed for extended wear depending on facility protocols

Body movement sensor guides user to remain still during measurement

Special Original Flat Panel Beige Support Belt Prolapse Strap 4" Cloth Bias Opening 1" from Bottom 6" Wide, X-Large Nasal Pillow Masks Positive: Distinct color bands appearSpecial Original Flat Panel Beige Support Belt Prolapse Strap 4" Cloth Bias Opening Placed 1" From Bottom, 6" Wide, 41" 46" Waist, X Large, Cool Comfort Ventilated Elastic, Left Side.