Box Fan Air Filter Front Or Back

20 by 20 by 1 merv 13 furnace filter.

Box fan air filter front or back.

To make one start by buying a merv 13 or fpr 10 furnace filter and tape it to the back of a box fan. Building the box fan air purifier. Fortunately i tested lots of different fans. 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.

Important tips while using fan. Important tips while installing filter to the fan. There will be a little arrow on the filter showing which way the air should flow. Box fans were not designed for use with filters and the safety of filter fans has not been.

As you can see in his video demonstration terrell tapes a 20 by 20 inch whole house air filter merv 13 or higher which sells for 15 over a 20 inch square box fan which you can find for. Air purifier filter front vs. This article is based on the 3m merv 12 20 x 20 pleated filter and the web absorber cut to fit 20 x 25 filter. 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.

Some have wondered whether we should tape it onto the back of the box fan filter. 20 inch box fan. I ve got actual data on this question and the answer is the opposite of what most people tell me how it. I ve watch a ton of videos and some people put the filter on the front with a tiny piece of tape.

Start off by unpacking the fan and making sure that it works. Point that in the right direction and then tape onto the front of the box fan filter. That would alter the fan so we can t compare apples to apples. The filters sell for about 15.

To get started all you need are a 20 inch box fan and a 20x20x1 furnace filter merv 13 or higher once you have your materials place the filter in front of the fan with the airflow. The suction from the fan should also make the filter stick to. Seal the filters to the fan with duct tape to capture the most particles. Fan 20 x 20 box fan any model and manufacturer filters depends on your needs and research findings.

Make sure the arrows on the filter point towards the front of the fan or follow the same air flow of the fan.