I was recently approving some architectural plans for our 14,000 sq. ft. indoor training center. The architect specializes in police and military range design told me I need to add 25,000 dollars for HVAC ventilation in the gun cleaning area. I said nope! We plan on only using Frog Lube which is non toxic. He was thrilled because he can tell his clients a good way to save money. Thanks for the savings!