Looping smoke large and in the clear, 4k 30p, with alpha for transparent background
 
KEYWORDS:
rising smoke, alpha channel, gas, mist, steam, smoke, isolated, vapor, fog, fire, explosion, burning, blast, layer, transparent, cloud, nature, particles, flowing, air, smog, mystery, exhaust, haze, atmosphere, backgrounds, cold, frozen, 4k, video, clouds, texture, backdrop, black, motion, slow, burn, flame, smoking, swirl, effect, flow