Features of AsthmaCheck® Peak Flow Meter: Its built-in, three-zone system facilitates patient training and compliance and allows for flexibility in setting the zones to meet patients' individual needs Measuring only 2¼ Inches by 6 Inches, the meter meets ATS standards for accuracy and precision Meter is equipped with an easy-grip handle to direct hands away from the airflow path and features a linear scale Designed for single-patient use, the device can be cleaned with soap and water and is top-rack dishwasher safe Disposable one-way valve mouthpieces are also available to offer protection from cross contamination during multipatient screenings PRODUCT SPECIFICATIONS:VENDOR: Vyaire MedicalVENDOR NUMBER: 002068PRODUCT ID: 20663900BRAND: AsthmaCheck®UPC: 0630140018926COLOR: WhiteFLOW RATE: 60 to 810 LPMMATERIAL: PlasticSCALE INCREMENTS: 10 LPM Increment