Buhl Spirometer Specialty Scales Adjustable height to fit user Parts are DEHP and Adjustable height to fit user and bathtub clearance Lowers 90 Degrees * Contoured Face Nose Opening * Center Section: 22 x 34 Does not raise * Foot Section: 39 x 34 Raises 70 degrees * Strong stylish and affordable * For the clinician the AM Series offers full height adjustment and section mobility so the patient can be placed in the proper position for maximum results with minimum effort * For the patient comfort and easy access getting on and off the table * 34 oz Spirometer * Indicator registers forced vital lung capacity up to 7 liters * Needle stays at maximum until reset * Weight: 6 ounces * Can be used as an incentive exerciser *