and tony boone was also involved in these tests. we have had such great results. we are now looking at possibly grant funding. placing this filter on each one of our vehicles. a real rough estimate was about 700 and $74,000 to do our current fleet. we have incorporated the change into all of our new and current vehicles on order. all of our new engines and trucks will have this filtration system installed. and then the 774,000 would cover our current fleet. i think we have been really trying our best internally on looking at what other departments do and reaching out and being really collaborative and including other city agencies also in some of the changes. while i think the exhaust extractor is an excellent starting point, i can now, his technology moves forward, we need to incorporate this technology into -- not only into our vehicles, but even a lot of our firefighting tools. i hope that answers your question. >> okay. that's good. >> yes, it does. thank you very much. i want people to be cognizant of the fact that this is a serious problem and it is get -- g