Kapalabhati

• Vatakrama kapalabhati, a practice similar to the Pranayama technique of Bhastrika, except that exhalation is active while inhalation is passive, the opposite of normal breathing.
• Vyutkrama kapalabhati, a practice similar to Jala neti, it involves sniffing water through the nostrils and letting it flow down into the mouth, and then spitting it out.
• Sheetkrama kapalabhati, can be considered the reverse of Vyutkrama kapalabhati, in which water is taken through the mouth and expelled through the nose.