Intended Use

The product is used to deliver warm and humidified breathing gas to patients and is used in conjunction with a breathing gas supply device with high flow function. It is
expected to be used in medical institutions and home environments.
WARNING!

• This product must be used under proper supervision.
• The product is intended for use by a single patient only. Multiple patient use may spread infectious substances.
• Do not clean, disinfect or sterilize the product, otherwise it may lead to the degradation of the material and product defects.
• The nose delivery the breathing gas can produce positive airway pressure (PAP).
  The possible adverse reactions of patients to positive airway pressure (PAP) should be considered.
• Please do not use a nasal cannula with air entrained in case of excessive pressure.
• It is forbidden to use a nasal cannula near open flames in case of a fire.
• It is forbidden to squeeze or pull the nasal cannula to prevent the failure of treatment.
• If you need to use the nasal cannula to cooperate with the oxygen supply device, please follow all safety precautions. When the breathing gas supply device is not working, the oxygen supply device must be turned off to prevent fire danger.

CAUTIONS!

• Check the integrity of the product packaging, if the package is found damaged, please do not use this product.
• The product should be connected to the breathing gas supply device manufactured or recommended by our company or recommended by the prescribing doctor. The use of incorrect breathing gas supply devices may affect the treatment effect.
• Check all connections to ensure that there are no blockages or leaks in the device.
• Please check whether the airflow is sufficient before wearing the nasal cannula, and make sure that the breathing gas supply device is preheated.
• Choose the appropriate size of the nasal cannula which can not cause blockage of nostrils.

Contraindications

Facial deformities, those who are allergic to the nasal cannula material such as silicone, and thermoplastic elastomer (TPE), and those who have broken skin in contact with the
oxygen tube should be used with caution
WARNING!

• If the patient has any adverse reactions such as skin redness, chest tightness, dyspnea, gastric distension, severe headache, lacrimation, snivel, and so on, please
  contact medical and nursing professionals