- Stertor : ์๋ถ ํธํก๊ธฐ ์์ชฝ (์ฝง๊ตฌ๋ฉ, ๋น์ธ๋) ๋ค์ด๋ง์ค ๋ ๋๋ ํธํก์ (inspiratory snoring noise associated with partial occlusion of the nasal passages, choanae(๋ค์ฝง๊ตฌ๋ฉ) or nasopharynx)
- Stridor : ์๋ถ ํธํก๊ธฐ ์๋์ชฝ (ํ๋, ๊ธฐ๊ด) ๋ค์ด๋ง์ค ๋ ๋๋ ํธํก์ (high-pitched inspiratory noise associated with partial occlusion of the larynx or trachea)