Fog Aerosol Spray Lets You Create Mysterious Foggy Atmospheres Anywhere You Go Atmosphere Aerosol is a canned fog spray that allows photographers to create haze or fog without having to invest in or lug around a heavy fog machine. In a demonstrational video, the creators indicate that the can can be sprayed for up to 5.5 minutes, and that the haze lingers for up to an hour – if the space it’s being used in isn’t too well-ventilated. The spray works with butane, propane and mineral oil. Butane and propane are common aerosol propellants used in hair and cooking spray, and the company claims that the product is non-toxic. There are indications that these fuels can be harmful when inhaled, however, so be careful!