NSF/ANSI 455

NSF/ANSI 455 is a standard that sets safety and performance criteria for devices used to test and diagnose patients' breathing and respiratory health, such as spirometers. It ensures these devices are accurate, reliable, and safe for clinical use by establishing protocols for calibration, testing procedures, and quality control. Compliance with this standard helps healthcare providers trust the devices' measurements, leading to better diagnosis and treatment of respiratory conditions like asthma or COPD, thereby improving patient care and safety.