a filter from a painting respirator??

so i have this painting respirator from when i took autobody at my old school. any1 ever try to make a filter with 1.(the filters, not the mask itself) i figure ive been in rooms with strong ass fumes and couldn't smell a thing with my respirator on.
i was thinking of using like PVC pipe or something, and putting the filters at the end, while a small fan is at the other end. any 1 think it would work?
thanks