पूर्ववत्कुम्भयेत्प्राणं रेचयेदिडया तथा । श्लेष्मदोषहरं कण्ठे देहानलविवर्धनम् ॥ २.५२ ॥

pūrvavatkumbhayetprāṇaṃ recayediḍayā tathā । śleṣmadoṣaharaṃ kaṇṭhe dehānalavivardhanam ॥ 2.52 ॥

In addition to the previous instructions, the breath is held (Kumbhaka) and then expelled through the Idâ (the left nostril). This removes shleshmâ (kapha disorders) in the throat and increases the bodily fire (agni).