The Omron C28P is a compressor nebuliser that uses Advanced Valve Technology (AVT) to synchronize aerosol flow with the user's breathing. It can be used with medications to treat chronic conditions like asthma, COPD, bronchitis, and bronchiolitis, or with saline solution to relieve and treat a cough and cold. The C28P is designed for intensive use and is suitable for treating lower airway respiratory diseases like asthma, COPD, cystic fibrosis, or emphysema