This is a how-to instruction of breath of fire breathing exercise from Tantra and yoga pranayama (without any discussion of health benefits explanation). This is NOT the Kundalini (Yogi Bhajan) yoga version although some Kundalini teachers teach it like this. I studied breathwork at KDHAM yoga college, Sivananda, and Tantra. Worry more about feeling the benefits rather than the name.
Remember the focus is more on the exhale- this is not a panting breath. This is not bastrika- bellows breath which is deeper exhale and even more focus on exhale.
For more info: http://www.solotantra.com