1. It is made of good, eco-friendly, medical silicone and plastic material.
2. Its easy to wear and remove.
3. Its well sealed to avoid oxygen leakage.
4. It is light, safe, durable to use.
5. It can provide well the oxygen needed by the patients.
6. Its especially fit for those who find nasal masks unsuitable because of mouth open.
7. This is used for multiple times and for long term purpose for more than two years.