What is the frequency of filter changes on the NO SMOKE?
There are a number of variables that affect the frequency of filter changes including timer setting, the age of the engine, the sulfur content of fuel, and the number of runs. For instance, large city fire department NO SMOKE users such as Indianapolis F.D., Nashville F.D., Sacramento F.D., or San Antonio F.D. typically change their NO SMOKE filters approximately once a year. On the other hand, a volunteer fire department might go 10 years between filter changes. In general, most fire departments go 2-3 years between filter changes. Note that these guidelines on filter changes do not apply to the NO SMOKE 2.
