Home made carbon filter

[babystarbud]

A variation of the one in the FAQ;s


This is a large filter suitable for 6-8 inch ducting.


Ingredients:

wire mesh
tie clips large
tie clips small
duct tape
very thin breathable fabric
2 old CD's
activated carbon granuals (purchased from koi-carp supply shop)
old pair of scissors.

[babystarbud]

First, a tube the same diameter as a CD is made, about 2 foot long.
held together with small tie-clips.

Then, fabric is wrapped around, leaving a an inch or 2 overhang at one end, and 6 inches at the other.

This is secured down the legnth with duct tape, and the end with the 6 inch overhang of fabric is twisted and tied-cliped, then sealed with a CD on the end the help keep the shape round.

[babystarbud]

Next,

some foam pipe insulation is wrapped around the bottom of the tube and held in place with duct tape.

then a larger tube is made for the smaller one to fit into, but this tube is two inches shorter.

[babystarbud]

Then, the smal tube is insrted into the big one, and the gap is carfully filled with activated carbon granuals.

Once this is done, a second strip of foam is inserted around the top, this helps the filter keep its shape.

this is then all sealed up with duct tape

[babystarbud]

Finishing touches are made, duct tape to seal the ends and the fabric join down the legnth and large tie clips along the legnth to hold the shape.

A filter like this costs abot £50-£80, we made three for under £20 :thumbsup: