The aerosol therapy is a technique of drug delivery by inhalation using a nebulizer mask or a spacer. The first is used in clinics and hospitals, while the second the patient can use anywhere. In addition, the spacer is most commonly used to treat diseases such as bronchitis, respiratory infections, asthma, cystic fibrosis or cancer processes. The use of this camera is simple and consists of inhalation through the mouth of the indicated dose of medication by pressing the inhaler containing the drug. Currently, there are several drugs that are administered in this way but the most common are antibiotics, bronchodilators, corticosteroids, or antivirals, etc.