As long as your fog machine is used properly it is perfectly safe to breathe. Most fog machine fluids are made from a water and glycol solution that is not considered to be hazardous, however it may cause respiratory or throat irritation problems in some people.Click to see full answer. Similarly, you may ask, can fog machines make you sick?A: Fog machines use various components to create their effects. Even in a person without asthma, short term exposure to glycol-containing fog machines can be associated with headaches, dizziness, drowsiness, and eye irritation.Subsequently, question is, is fog machine fog flammable? If you want to use a fog machine with ordinary props, you absolutely must consider any potential risk of flammability. Fog machines can get very hot. You would never want to put your fog machine inside or near anything that could potentially be flammable. Simply so, is fog safe to breathe? If you over-heat the fog fluid, you will create unhealthy byproducts. If you under-heat the fog fluid, you will create fog fluid residue. The first is not safe to breathe, and the second creates a slip hazard.Can a fog machine kill you?The fog machines generally in use use a water/glycol (aka glycerine) mix that is far safer – non-flammable, and doesn’t kill you by inhalation.