According to the official website of Shanghai Oxygen Beauty Technology Co., Ltd, their products include medical molecular sieve oxygen concentrator, ozone large and small therapeutic instrument and ozone generator. Medical molecular sieve oxygen concentrator is a kind of equipment that removes nitrogen from the air through molecular sieve technology and extracts pure oxygen, which is widely used in medical field. Ozone large and small therapeutic apparatus is a device that utilizes ozone gas for treatment and can be used for a variety of diseases such as skin diseases and chronic diseases. Ozone generator is used to produce ozone gas equipment, can be applied to water treatment, air purification and other fields.