Specialty Medical Supply offers several different kinds of nasal cannulas. A Baxter cannula has a small tab underneath your nose and can help keep the cannula in the right spot. A Salter cannula is very soft and comfortable. And micro cannulas are used for patients with very small noses. The use of an oxygen mask is often considered a viable option, sometimes patients consider a oxygen mask less intrusive or irritating but the use of an oxygen mask needs to be understood.