What is the normal value of exhaled NO concentration



Breath NO is known as Nitric Oxide Breathalyzer, and the normal value of Nitric Oxide Breathalyzer is less than 20 ppb for children less than or equal to 12 years of age, and less than 25 ppb for people over 12 years of age.

Nitric Oxide Breath Test is an important clinical test, simple and non-invasive. Nitric Oxide can regulate a variety of physiological behaviors and is also involved in pathological processes. Higher-than-normal values may be due to inflammation in the airways or nasal passages, such as bronchitis, chronic obstructive pulmonary disease (COPD), rhinitis, sinusitis, etc., or allergic causes, such as bronchial asthma.

Nitric Oxide Breathalyzer is recommended to consult a regular hospital if it is higher than the normal value, to clarify the cause of the disease, and to treat according to the cause of the disease.