Sit in sukhasana(any comfortable pose), adopt any mudra.
Keep your spine straight and take few deep breathes to make your mind focused and relaxed, bring focus inwards on your breathing.
Make a short exhalation and then start inhaling slowly, using all the respiratory muscles, without any break.
After completing the inhalation start exhaling smoothly and completely, without retaining the breath.
Take few normal breaths, and repeat the process.
While doing this practice, focus on your breathings and feel the positive vibrations inwards.
Continue the same process for few more times or as much as you can according to your capacity and preferences.
Maintain silence for few minutes and observe the benefits of purak.
Practice Keynotes
After inhaling, try to exhale for as long as you can.
Cautions and Limitations
Pregnant women should do this Pranayama under a qualified yoga practitioner and should do very slow.
Those suffering from heart ailments should not attempt retention of breath.
Under no circumstance should the breath be forced. Never breathe through the mouth.
Proceed carefully and only under expert guidance. At the slightest sign of discomfort, reduce the duration of inhalation/ exhalation/retention and, if necessary, discontinue the practice.
Pranayama should never be rushed.
Person with breathing ailments must consult the suitability of pranayama with their doctor.
Contraindications
People with heart diseases, avoid this practice.
General Benefits
Open ups the pores of lung that makes your respiratory system better.