I am not an alcohol breath test scientist, so I am not an expert in this area and can't speak to that. You would have to ask the scientists. I can say that in the early 2000s, the Winnipeg police department looked at passive alcohol sensing devices and found that, in the wintertime, the particular device they were looking at was not able to function in Canadian climate conditions.
On October 18th, 2016. See this statement in context.