This air filter has been in use for a few years now & has proved most effective, it is based around a squirrel cage fan that was designed for long running periods as it had been salvaged from an industrial machine. The capacitor for the fan had been incorporated in the machine`s panel so I needed to source a new capacitor, e-bay was my friend there, once wired up the fan was capable of moving a considerable amount of air.
I constructed the unit from off cuts of 18mm MDF which were cut up so as to give me a box 20" x 10 1/2" x 9 3/4" when assembled.
Domino slots were cut in the panels to form the box & an aperture was routed out to allow the exhaust air out.
The base & 2 sides were then glued & dominoed together & the fan housing bolted in.
Over to the lathe & a piece of 26mm MDF cut to the internal dimensions of the box was fixed to the chuck & a rebated hole cut through it.
This was then glued & nailed in position.
The top was then glued on & whilst I`d got the nail gun out another piece of 25mm MDF was glued & fixed at the back of the fan for added support & to fix a bracket onto which the capacitor could then be mounted on.
View through the front of the filter.
I constructed the unit from off cuts of 18mm MDF which were cut up so as to give me a box 20" x 10 1/2" x 9 3/4" when assembled.
Domino slots were cut in the panels to form the box & an aperture was routed out to allow the exhaust air out.
The base & 2 sides were then glued & dominoed together & the fan housing bolted in.
Over to the lathe & a piece of 26mm MDF cut to the internal dimensions of the box was fixed to the chuck & a rebated hole cut through it.
This was then glued & nailed in position.
The top was then glued on & whilst I`d got the nail gun out another piece of 25mm MDF was glued & fixed at the back of the fan for added support & to fix a bracket onto which the capacitor could then be mounted on.
View through the front of the filter.