Thick smoke, seamless loop, two speeds, HD 24p, with alpha channel 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, 24p, video, clouds, texture, backdrop, black, motion, slow, burn, flame, smoking, swirl, effect, flow