Seal the filters to the fan with duct tape to capture the most particles.
Diy box fan air filter front or back.
The suction from the fan should also make the filter stick to.
Important tips while installing filter to the fan.
Your total cost for a diy box fan filter can be as low as 40 50 00 including incidentals like duct tape or higher depending on the filter options.
I ve got actual data on this question and the answer is the opposite of what most people tell me how it.
There will be a little arrow on the filter showing which way the air should flow.
To make one start by buying a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan.
Insofar as filter changing costs you will find that it is still much cheaper to buy furnace filters and variants of them without sacrificing on quality or air cleaning capacity.
Make sure the filter is placed against the back of the fan.
Take the back casing off of a box fan.
Some have wondered whether we should tape it onto the back of the box fan filter.
Should air purifiers have the filter on the front or the back is it better to push or pull air.
Select a fan you wish to use for your filter.
Locate the screws on the back part of the fan and turn them counterclockwise to remove half the case as well as the fan s handle if it has one.
When i made my first diy purifier i put the filter on the front.
20 by 20 by 1 merv 13 furnace filter.
Wow you are in luck because this nerd right here has been building and testing diy air purifiers to survive beijing for the last six years.
The smart air lab in beijing ran tests of the same fan with the hepa filter on either side and the results contradict most people s intuition.
Important tips while using fan.
Take the fan put on the feet for stability tape one fancy high rated furnace filter to a lower rated filter then tape those to the back of the fan.
Make sure the arrows on the filter point towards the front of the fan or follow the same air flow of the fan.
I ve watch a ton of videos and some people put the filter on the front with a tiny piece of tape.
The filters sell for about 15.
Point that in the right direction and then tape onto the front of the box fan filter.
Box fans were not designed for use with filters and the safety of filter fans has not been.
The ideal fan is a 20 in 20 in 51 cm 51 cm box fan since similarly sized filters are common.
