Answer: You can’t fool the breath machine in Wisconsin, but there are many things that can affect the machine. Here in Wisconsin, it’s called the Intoximeter EC/IR II, and there are many factors that can influence the breath result. Some of these can cause the machine to read things such as ethanol that are not ethanol. There are also quite a few maintenance issues that can affect the reliability of breath tests in Wisconsin. It is important to have an attorney who is familiar with all of these things.