Portable Oxygen Concentrator

 A Portable Oxygen Concentrator (POC) is a lightweight, battery-powered device that delivers oxygen via pulse dose technology, enabling active, mobile lifestyles for patients with chronic lung disease. By providing oxygen on-demand with each breath, it maximizes battery efficiency and portability, allowing users to travel, exercise, and socialize freely. It is a prescription-only device that requires careful titration to match a patient's needs during activity and is not a substitute for a stationary concentrator used at home and during sleep. Key considerations include FAA approval for air travel, battery life management, and understanding its specific use case as an ambulatory aid, not a primary oxygen source.

Spirometer

 A Spirometer is an essential diagnostic medical device used to measure how much and how quickly air can be inhaled and exhaled by the lungs. By performing forced breathing maneuvers, it generates key parameters—primarily Forced Vital Capacity (FVC) and Forced Expiratory Volume in 1 second (FEV1)—that are fundamental for diagnosing and monitoring obstructive and restrictive lung diseases like Asthma and COPD. Requiring daily calibration and strict adherence to international standards (ATS/ERS), it provides the objective, reproducible data needed for clinical decision-making in pulmonology, primary care, occupational health, and pre-operative assessment.