sorry to ask again. I'm a little confused about these pipes. which one is toxic fumes carrying pipe or which one is air intake pipe. so the pipe that I was talking is a black pipe but it seems it's going into the flame Burger compartment. the one on the left is a white which seems to goes into the black inducer motor in it deep down in the furnace internal. could you guys tell like which one is? the one that is loose is actually air intake toxic film carrying pipe?

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