Chris Limon, Sr. Manager Facilities Maintenance - LA County Metropolitan Transportation Authority

On September 6, 2016 I received two cases of MonoFoil M at my office. I was instructed to test this product to see how it measures up to the Waxie CDC; a chemical we’ve been using to eliminate the strong odor of urine in and around our elevators.

On September 7, 2016 I used the MonoFoil M inside and around the outside of the elevators at the Willowbrook station. I could tell the difference immediately. I then went to the Firestone station and used it not only in and around the elevator but along the base of the entire wall.


On September 9, 2016 I used the MonoFoil M inside the elevators on the Expo line. At the Culver City and La Brea stations I used it inside the elevators, stairwells and against every urine stained wall.


On September 14, 2016 I used the MonoFoil M inside and around the elevators at the Long Beach and Del Amo stations. I treated many walls stained with urine at both stations.


On September 17, 2016 I used the MonoFoil M inside and outside the elevators and on the stairwells at the Vermont, Avalon and Harbor stations.


On September 22, 2016 I used the MonoFoil M inside and outside the elevators at the Willow station. I also used it on the entire stairwell and parts of the parking structure.


On September 23, 2016 I used the MonoFoil M inside and outside the elevators at the Lakewood and Norwalk stations.

I’ve not treated either of these stations since the initial treatments. The MonoFoil M is still working after two months. After many layers of urine inside as well as the outside of these elevators and walls; coupled with having them mopped several dozens of times with strong chemicals, the urine is still down by 70%. The Waxie CDC is not even in the same ballpark as the MonoFoil M. No matter how often the Waxie CDC is used or how much is used, the odor is as prevalent as if a common household product was used. Don’t take my word for it, visit the above mentioned stations and you can smell the difference. Now after two months, I believe these areas could be treated again. If we could treat the shaft of the elevator, the odor could be eliminated by 85% to 90%.