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fog machine smells real bad! I bought the kmart constant fog machine. I put some fog juice in that i bought from wal mart. When i let the fog out, it gave the nastiest smell ever. It smelled like something was burning. It stunk up my whole basement. Me and my brother were grossed out by the smell and it took a long time before it went away.
Smog can harm health, damage the environment and cause poor visibility.   Smog is a combination of fog and pollution. The common cause of a widespread thick fog is a temperature inversion. If there is a significant source of pollution under the inversion, it gets trapped along with the fog.