How Fog Machines and Halloween Decorations Affect Your Home’s HVAC … by Mike Rampey | October 16, 2018October 23, 2018 Halloween celebrations might make a dent in your home’s HVAC efficiency if you use some kinds of candles and lamp oil or use a fog machine indoors. The sheer number […]Read More Filed Under: HVAC system Tagged With: air filters– fog– fog machine– halloween– halloween decorations– HVAC– hvac efficiency– hvac system