D.I.Y Air Filter
This instrucible is how to make a D.I.Y air filter. It is pretty easy to build. One side sucks air in, and the other one blows it out.
Supplies
You need two fans, 1 DC motor, 1 two aa battery holder, and sheets of cardboard. 4 coffee filters.
Making the Base
Using a sheet of cardboard make a the base depending how large your fan is.
Making the Fans Top
Using the same thickness of of the base cut a piece of cardboard. Cut out a hole the size of the DC motor and put it in there. Attach both fans on either side. Attach sides on cardboard piece. And glue on 2 coffee filters to both ends.
Making the Circut
Attach the battery to the motor and glue the battery to the top.