Glass Screen Protector Designed for iPhone 274 Pro Max/iPhone Xs max with Touch Accurate and Impact Absorb + Easy Installation Tray

The new asmaPLAN+ peak flow meter was designed to meet the new standards in performance and quality including a high visibility scale and built-in color-zone asthma management system. The lightweight, portable and accurate asmaPLAN+ with its "one-size-fits-all"design, is a true advance in helping patients' manage their asthma. The patented dual color sliders on the asmaPLAN+ define the management color zones set by the healthcare professional fo rthe asthmatic to follow.