Smoke, mist or fog drifting 004, HD 30p with alpha channel for transparent background
 
KEYWORDS:
rising smoke, gas, mist, steam, smoke, alpha channel, isolated, vapor, fog, fire, explosion, burning, layer, transparent, cloud, no background, flowing, air, smog, mystery, haze, atmosphere, backgrounds, storm, cold, frozen, video, texture, backdrop, water, slow, space, night, dust, sandstorm, green screen, drift, wind, breeze