Hatha Yoga Pradipika 2.44
The eight kumbhakas.
The Hatha Yoga Pradipika (2.44) names eight kumbhakas: Learn retention (kumbhaka), bandhas and the stronger techniques with a teacher, progressively. Never force the breath.
Surya BhedanaSurya BhedanaDraw the air in slowly through the right nostril, hold it as long as comfortable, then breathe out slowly through the left (HYP 2.49).
UjjayiUjjayiMouth closed, inhale slowly through both nostrils with a soft sound, feeling the breath from the throat to the heart.
SitkariSitkariInhale through the mouth with a hissing sound, hold, and exhale only through the nose.
ShitaliShitaliRoll the tongue, inhale through it, hold, then exhale slowly through both nostrils.
BhastrikaBhastrikaMouth closed, breathe out through the nose with a slight sound, then breathe in with force, again and again, feeling the breath in the heart, throat and head.
BhramariBhramariInhale, then exhale slowly with a deep humming sound, like a bee.
MurchhaMurchhaAfter a slow inhalation, apply Jalandhara bandha firmly and exhale very slowly.
PlaviniPlaviniInhale slowly and fill the abdomen with air, hold without any bandha as long as comfortable, then exhale slowly.