Vortex Chillers Halloween Formula Low Lying Fog Fluid 4 Gal SAVE $70.00!! Buy 3 gallons get one FREE! Save big on shipping when you get our 4 Pack deal! Temperature-specific dissipation formula creates thick, shoe leather high fog, never face-high haze Ultra pure, pharmaceutical grade ingredients burn clean, leaving no unspent residue mess Creates DRY smoke ideal for cold fog applications  no moist/damp sets or props Laboratory grade glycols enable total vaporization from fluid to smoke, creating no detectible smell