High-Powered Allergen Filter - CHEAP!

Introduction: High-Powered Allergen Filter - CHEAP!

In this Instructable, I will be showing you how to take a regular $15 box fan and use it to dramatically reduce your allergen intake.

Prior to using this upgrade, I was a lifelong TERRIBLE allergy sufferer.
Dust, dander, pollen, mold, mites... you name it.
I was at the level of needing monthly allergen shots, and still had to take antihistamines daily. Even still, I'd randomly go into sneezy, eye watering, itching, uncomfortable and embarrassing fits throughout the day.

I have been using this setup for about 6 months now, and have not had to take ANY medicines.
I have not had an allergy attack in about 6 months.

If you, your kids, a family member or a friend suffers from severe allergies, TAKE MY WORD, try this upgrade!

It makes for a great night-time white noise, and sleeping in an allergen free room significantly reduces the symptoms you'll experience during the day!

This is EXTREMELY SIMPLE, and relatively inexpensive. (approx $30)

After the upgrade, you shouldn't notice a marked difference in airflow. I don't at least. In any case, the payoff of not having allergy attacks far outweighs any loss of airflow strength.

Again, this is so simple, and the payoff is huge!!!

Step 1: Gather Supplies

There are only 3 things you will need for this upgrade:

1. 20"x20" Box Fan $15
2. 20"x20" Air Filter $15
3. Tape

Here we go : )

Step 2: Align Filter on Fan

Take your allergen filter and press it against the backside of the fan.

Step 3: Direction

Make sure to pay attention to the airflow direction indicator on the side.

Step 4: Tape It Up

Now you simply tape the filter to the back of the fan.
Place as much or as little tape as required/ desired.

Step 5: Enjoy!

The final step is to place your new fan/ filter wherever you like, and enjoy!

Step 6: Share With Everyone!

This simple mod is so easy, so cheap, and so effective, everyone should know about it. share it with all of your friends and family members!

Be the First to Share


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    6 Discussions


    8 years ago on Introduction

    i have been trying to find a way around spending about 90 bucks to replace my air purifier's filter. its crazy how much they charge for those things. When I first saw this I was like, great! I can now save so much money. Then I started looking around. I just saw how long the filter last. they only last up to 3 months. how washable are they? how many times can you use it? i mean if I have to spend 15 dollars every 3 months then a year I'd be paying 60 bucks and 3 years it'd be 180 bucks. thats exactly the amount of time the expensive filter for me purifier last..... not really worth it after all..


    Reply 8 years ago on Introduction

    A single air filter usually lasts me the better part of a year, sometimes longer. The "three months" is how long it may last when used in a home AC system. when attached to a fan, it last much, much longer as you are only really removing the allergens from the area surrounding it, usually small to medium room. I've not tried washing it, as they are so cheap (12$ here) and I very rarely have to replace it. I do know that there are washable filters of this size on the market, or you could fashion your own :) I know the "fancy" allergen filters have washable screen too, but even they must be thrown away eventually, and I usually go through a couple a year at least. I'm sure the area you live would play a huge factor as well, more or less pollen, dander, dust etc..

    Experiment! That's another thing that makes the Ibles community so great, take an idea and run with it! If you experiment with this, please let me know how it works for you!


    10 years ago on Introduction

    Wow! That is such a simple solution. I've spent so much on air purifiers which are hard to keep clean and expensive to replace the filters. I am going to put one of these in several rooms of my house.


    Reply 10 years ago on Introduction

    Thats a great idea! I currently have one in my bedroom. On days that I do not sleep at home, I notice that my allergies start to act up. Simply sleeping in the room with this filter prevents me from having an attack all day! Even if I spend the whole day outdoors!

    Oh my gosh! This is such an easy, and cheap process. I'm going to love it! I HATE allergies. They drive me nuts! I cant believe this is going to help! Thank you! :D