I have designed a low cost pollution reducer for a smoke stack. First, you narrow the smoke stack to a 2 foot diameter pipe. You place a blower fan in the 2 foot tube, blowing the smoke or pollution upwards. You then place a U turn in the pipe so that the pipe does a u turn downward. You then connect that pipe into a 3 foot by 3 foot by 8 foot box, made from aluminum. Inside the box is a foam rubber pad/filter which is kept soaked with water. The u turned pipe then faces downward into the box and forces the smoke/pollution into the water soaked foam rubber filter. Then, two feet over, at the top, you have an exist pipe for the cleaned air to exist the filter box. You then test the air coming out. If the air is clean then you are done. If not, repeat the procedure again with a new u turn pipe and filter box, above. You need to perioldically clean or change the foam rubber filter.
(C)Copyright 2010 by Anthony J. Fejfar
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