This portable Spirometer employs differential pressure acquisition principles to accurately measure over 100 parameters related to pulmonary functions, including Forced Vital Capacity (FVC), Vital Capacity (VC), Maximum Voluntary Ventilation (MWV), and Minute Ventilation (MV). Engineered for clinical and home use, it supports a wide range of applications such as baseline pulmonary assessments, pre- and post-bronchodilator testing, and provocation tests. The device provides reliable, high-resolution pulmonary function data that can be utilized by healthcare professionals for diagnostic evaluation and to guide therapeutic decisions. Compact, precise, and adaptable, this Spirometer delivers critical pulmonary metrics essential for effective respiratory function monitoring across diverse clinical scenarios.