Should the statistical classification of nasal catheter be material cost or treatment cost?

Material cost. This product belongs to disposable oxygen inhalation equipment, which belongs to medical material equipment, that is, it belongs to material cost. The nasal catheter is disposable and cannot be reused. This product is jointly developed by China Academy of Sciences, China Food University and Hunan Haokang Medical Technology Co., Ltd. It is a disposable oxygen inhalation terminal product with wet surface. This product can effectively prevent nosocomial infection and is a national patent product. There are many models of this disposable nasal catheter, including adult, adult humidification, child humidification and so on. Different users can choose the type that suits them.