@drjimmy1964 Yeah I'm telling you that a positive result only has one single visible line. I did a quick test at home to test my theory (I knew these p1llz were bunk). As you can see, there is a single clearly defined line. If you are seeing two then that means you are clean.
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I used to work at a Vet office and knew some of the dogs and handlers of an International Airport K9 Unit and some in the Military. These dogs are trained more intensely than the human soldiers are. That's why I keep thinking of that odor protection smell as a masking agent.