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Glue-ups, finishing, welding, general repairs, etcetera, etcetera, they all occur in the same space. All you need to do is attach the filter to the back of the fan with the arrows pointing toward the back of the fan. Hey there, thanks for reading my Instructable and for your comment! However, the most effective DIY home air purifier uses two filters at once for better airflow, and it’s not that complicated to set up. You can skip this step if you want to make a simple one-filter air purifier. Now it is time to assemble the wooden box. PollenTec Box Fan MERV 10 Nano Air Filters Pollen, Dust, Mold Spores and Pet Dander – Biodegradable, Electrostatic Design 6 Pack - Compatible with Holmes HBF2010A-WM Box Fans 20.5" Frame 3.4 out of 5 … Once the filters get caked with sawdust, they restrict the air flow quite a bit. Mine cost $20 at a local home improvement store. I painted a short length at a time keeping the fan close. All rights reserved. Now that you have all of your pieces cut, it is time to cut out the the circle for the blower fan, cut out the bottom section, and cut out the square for front air register. If you’re going to buy the HEPA filter linked above, you’ll need to shop around for a smaller box fan. 20x20 Fan With Air Filter. There are only a few steps left. Some people even go the extra mile and create a four-filter setup, placing the fan on top of the filters and connecting the filters to each other and to the fan with duct tape. An easy and inexpensive way to make your own air cleaner is to attach a very high-efficiency furnace filter to a basic box fan. https://www.homedepot.com/p/AC-Safe-20-in-Box-Fan-Filter-FF-20/307280271 Shawn was able to score a couple old furnace blower motors for free and the smaller of the two was to be the fan for his shop filter. With my workshop about 400 square feet (or about 35 square meters), and about 6.5 feet (2 meters) high, I have a volume of 2600 cubic feet. In 2018, I tested a popular claim: that sticking a furnace/HVAC filter on a standard box fan produces a useful DIY air purifier. A pack of home HVAC filters, also 20 inches: You can find these at any department store or order them online. Not only would it clean the air, but it would also help to keep the shop itself cleaner, by catching the dust before it settles. While there are impressive air purifiers you can buy with plenty of smart tech, they can be expensive, and you may not want to drop several hundred dollars on a new appliance. Make this DIY air filter to (possibly) reduce your indoor exposure to coronavirus ... president of Hive76, and Inquirer writer Tom Avril demonstrate how to build an air filtering system out of a box fan and some furnace filters on Oct. 14, 2020. Let’s dive in to show exactly how it’s done. Please see PLANS and VIDEO for reference. However, with the triangle purifier setup, you have to cover up those additional gaps, so the fan is actually sucking air through the filters themselves. Assuming the shop air mixes perfectly, for a time constant of 10 minutes, the unit has to filter a volume equivalent to the workshop every 10 minutes. Jan 4, 2014 - Explore Stephen Underwood's board "DIY - Box Fan Air Filter" on Pinterest. Set your purifier on the side of the cardboard, and cut or trace around it to create a cardboard triangle that can comfortably fit the air purifier’s gap. Digital Trends may earn a commission when you buy through links on our site. MERV vs. HEPA filters HEPA filters are the gold standard of air filters. I made the spot for the 5” filter so that one day I can put a 20”x20”x5” MERV 16 filter … The construction of the box is very simple, I used glue and brad nails to attach the pieces together. Over time, these filters will get quite dirty and clogged with dust. To make one, start by buying a MERV 13 or FPR 10 furnace filter and tape it to the back of a box fan. This is what I came up with. But a quick solution, as posted by the University of Michigan’s Medical Center, is to create your own filter using a box fan and a standard HEPA filter, both readily available in most hardware stores and costing about $25 for everything. Any type of sealant will work for this but you must not skip this step. Attach filters to the fan. After coughing up a lung I decided to hurry up and make a DIY Shop Air Cleaner before my lungs get caked with sawdust. Not much left to do except popping in the two filters and installing the air cleaner somewhere in your shop. The project itself is a homemade shop air filter. It is essentially just a wooden box with a blower motor sucking dirty air through a set of filters and blowing out fresh clean air. Supplies. Saw Dust Filter Fan. This will probably perform even better than the filters used during testing) I am extremely creative and I am alway…, How to Make Charcuterie Boards Using Clear Acrylic Templates. This would be a good projec… Now, bring out your duct tape again, and seal the edges while attaching the cardboard to the top and bottom of your DIY purifier. Apply gasketing to the edges of the air intake part of the fan. It doesn’t take that much more work, and with greater airflow through two filters, the DIY purifier is much more effective. This is what I came up with. Photo 2: Filter box with removable side sitting next to it Photo 3: Filter box with a filter and fan inside Photo 4: Different view of filter box with filter and fan inside. Matthias Wandel built something similar (larger) a while back, but his shop is much larger than mine so I'm not sure yet how much power I'll need. Air filters like these will have arrows on the sides that show which way air is supposed to flow through the filter. Repurposing a Box Fan Purchase a fan you can fit with a filter. Or better yet, make yourself a fancier DIY air purifier by finding a fan without a metal bar in the front, like the DIY air purifier I ship through Smart Air. I have one in the window and every couple months, I have to pull it down and clean the fan and the screen that is on the window. Using the free plans that you downloaded from my website ( Click HERE if you haven't ), cut out the 3/4″ plywood according to the cut list. Give this inexpensive DIY air filter a try. Now you are almost done. Share it with us! I have built a few, as simple as a 20x20 filter attached to a box fan, works pretty well in a smal area, for dad's body shop we build a 6 ft square box 12" thick, it is on casters. Looks like something that would help alot! The fan/filter captured the spray paint \'drift\' perfectly (although I still had to wear a respirator and thoroughly air out the apartments). As you can see, you place the other 20-inch sides of the two filters to either the side or the back of the fan and tape them in place. (Note: Some have wondered whether we should tape it onto the back of the box fan filter. Now that most of the box is assembled it is very important to make sure that the intake portion of the box is air tight. I think that with my setup and with clogged filters it recirculates more like 200 cfm. I leave it on sometimes over night and I come back in to my shop the next day to a fresh clean air shop. I used a hand held circular saw to cross cut the pieces to rough size, then finished them off on the table saw. Did you make this project? I am very glad that I took the few hours it took me to build this project. Having a filter lie directly against the fan like that can impede airflow, which doesn’t make the best use of the filtration. I had a few extra furnace filters lying around, so I tried attaching one to the back of the fan using hook-and-loop fasteners. That’s fine — air will enter through the filter on the back of the fan and then exit through the front of the fan. Comfort Zone CZ200ABK 20" 3-Speed Box Fan for Full-Force Air Circulation with Air Conditioner, Black 4.4 out of 5 stars 1,362 FilterBuy 20x20x1, Pleated HVAC AC Furnace Air Filter… I hung mine on the ceiling right above my miter saw because that is where the most sawdust is generated in my shop. Use this triangle to create a mirrored cardboard piece for the other side as well. How long does this take to clean your shop air after a sawing session? At this point you should also install your blower fan and make sure that you seal that as well. After building my new shop I soon realized that it was really hard to breathe with all the dust I was making. The blower motor that I used states that it provides 420 cfm of air flow so in a perfect world at that rate it should be able to clean all the air in my shop in less than 5 minutes. My workshop doesn’t have air conditioning, and it gets pretty hot while I’m working. I mounted mine pretty centrally and near my biggest sawdust maker (my miter saw) and I run it continuously while working. Then cover the hole with a couple of disposable furnace filters and cut slots in the bottom of the box to vent the filtered air back into the room (Photo 1). Matthais mounted his air cleaner(s) in the corner of his shop which I think is a lot less effective. The Tom Builds Stuff blog has a great example that shows just how this works. I’m not sure when I’ll get around to making one for my shop but now I know I have a motor for it. I like this method because it allows me to break down the pieces to a more manageable size before ripping them to final dimensions on the table saw. I used to blow a fan directly at myself, but it sucked in dust from around the shop and blew it at me. The filters sell for about $15. Once I found sawdust is a carcinogen (yes, really) I always wear a mask while working, but filtration still makes a lot of sense. Place your two filters together, with the arrows pointing at each other. If you order a fan or filters online, the box they come in should work just fine! This piece has a large square cut out that holds the filters in place but also allows full airflow through the filters. 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. DIY Air Filter One easy and affordable way to make your own air cleaner at home is with a box fan and a furnace filter. That would be a bit of an exaggeration though because 1. 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. With all that said, my shop is 12' x 16' x about 8' tall (almost 1600 cubic ft) /200 cfm it should take more like 10 minutes to clean the air. As per the cut list in my FREE PLANS, I cut plywood strips 1" wide and use them to create a frame to house the filters. Now, use your duct tape to tape a 20-inch side of the two filters together to form an angle. I measure and mark the locations of the filter frames and attach the strips with wood glue and brad nails. You can use any tool you have available that can cut through wood but I used my trusty Black and Decker Matrix with the jig saw attachment. Matthias has some gadget for measuring airborne particulates, and I don't, so your numbers are very helpful. Let’s talk more about your air purifier design. Room air gets sucked into the filter first, and the fan blows clean air out. Extra features like activated carbon are nice, but not necessary. We suggest you get at least a four-pack for this project. Ideally, find a fan that is the same … there are impressive air purifiers you can buy, or you could just plug it into a smart plug, Tom Builds Stuff blog has a great example, https://www.reddit.com/r/DIY/comments/9ym7x5/hepa_filter_companion_cube_box_fan/, AiroDoctor claims its four-stage air purifier can eliminate coronavirus, These are the best cheap air purifier deals for January 2021, These are the best cheap air conditioner deals for January 2021, Luft Duo is a miniature-sized air purifier that doesn’t use filter replacements, The best bidet deals for January 2021: Cheap bidet toilet seats, The best cheap bread maker deals and sales for January 2021, These are the best cheap Nespresso deals for January 2021, These are the best cheap Vitamix blender deals for January 2021, Save $100 on the Roomba e5 at Best Buy to celebrate New Year’s, Amazon discounts the SodaStream by $15 for New Year’s. Make sure it’s around 20 inches high, a common standard for box fans. A reliable box fan: If you don’t already have a box fan, you can find affordable options for around $20 to $40, like this Comfort Zone model. Reference the plans and the video above for details on how I do this and hopefully it helps you figure out how to assemble yours. Fortunately, there is a homemade, do-it-yourself (DIY) alternative to consider — one that’s both affordable and effective. These filters sell for about $15 at your local hardware store. He built a frame around the blower from plywood and 2 x 4s, and attached a switch to control the fan. Wide painters tape or duct tape; 20”x 20” Box Fan (with controls on the top, front or side) All you need is a box fan and some traditional, replaceable HVAC filters. A model with a timer is nice, but not required (or you could just plug it into a smart plug). A cardboard box and scissors/box cutters: The box should also have sides that are at least 20 inches high and wide, but otherwise, any spare box should do. Securely fasten a MERV 13 filter to the air intake side of the fan. Please view all of the detailed photos, download the FREE PLANS, and watch the VIDEO for reference. That’s “pull-through” instead of “blow-through,” the way residential AC works. 20 inch Box Fan; 20 by 20 by 1 MERV 13 Furnace Filter; Heavy Duty Tape; Directions: There will be a little arrow on the filter showing which way the air should flow. Using a separate fan to recirculate air around the shop did not affect the air filtration system efficiency at all. Now the fan will have to draw air through the filters as it runs. Let’s talk more about your air purifier design. The 9 things Amazon Echo can do that Google Home can’t, These are the best deals on Ring Video Doorbells for January 2021, These are the best cheap blender deals for January 2021. Railroad Rail Lantern / Sign Stand Split With Axe. Reply #5 Admire your new DIY air purifier Total cost for this DIY air filter: 166 RMB (US$27). What was the cost of all components in a rough estimation? Three stage, double box fan air filter On of the things I wanted to do was provide a way to filter the air in the microshop. Nest Hello vs. Ring Video Doorbell Pro: Which is better for you? I hope to keep at least two 1” filters in it most times. I notice that after about 10 to15 minutes the air is dust free. A typical HVAC filter is designed to be replaced every several months or so. Point that in the right direction, and then tape onto the front of the box fan filter. The 'hack' is easy: Experts recommend buying what’s called a MERV 13 or FPR 10 furnace filter and tape it to the back of a box fan. DIY-ers will sometimes construct their own HEPA filters by simply attaching an air filter to the front of a box fan, but Dr. Corsi says that might not be as effective as it seems. If you have gaps or leaks in your box air and dust will get sucked in and re-circulate back into your space. Several years ago I built a basic air filter using an old recycled furnace fan, which I wrote about in this post.The original air cleaner was ugly, awkward to install via hanging chains, had a switch location which made it hard for my vertically-challenged wife to turn on, and was unsafe due to the exposed blower fan squirrel cage. Duct tape: It’s pretty easy to find duct tape online or in the store. After coughing up a lung I decided to hurry up and make a DIY Shop Air Cleaner before my lungs get caked with sawdust. I don't think that it actually does provide 420 cfm (more like 300 cfm) and 2. Design 1: Use one filter for a … Attach the front piece with the 8"x8" square cut out of the center to the box using some more wood glue and brad nails. Insert the air register into the 8"x8" opening and use the 2 screws that are provided with the register. If you like this project PLEASE consider following my Instructable profile. If you would like a FREE copy of the SketchUp drawings for this project you can download them from my website by clicking HERE. 3 years ago. It is vital that all air being blown out of the discharge of your air cleaner passes through the filters first. Thank you so much if you made it this far. Thanks! Once I have all the frames attached, I then attach the bottom of the box. Remember to choose the right size. Now, you are ready to set up your air purifier in a central location in your home. If you have any questions at all please leave a comment. Compare that to 8,000 RMB ($1,300) for the fancy purifiers here in Beijing. This step is unnecessary if you’re going with the one-filter design, as you can simply attach one 20-by-20-inch filter to the back of a 20-inch box fan. The air filter panels are Merv 13 rated and … I use 20X20 box fans. About: I am a Building Automation Engineer at a major University in California. I think our spaces are similar, ,though I'm just in a one-car garage. If they start looking dirty, it’s probably time to quickly disassemble and replace them with new versions to keep the purifier working optimally. : History: First off, a little history of how this project got started. The easiest way to make a low cost air cleaner is to just use a cheap box fan with a furnace air filter attached in some way to the inlet side. The addition of a charcoal filter can also help to reduce odors, like those that come from wildfire smoke. A single strip of duct tape around the edges should be fine, but you don’t want any gaps or cracks to impact efficiency. If you would prefer to use this larger setup, then start by taking two of the filters you bought and unpackaging them. I’m not talking about venting – that’s still something else I will do – but rather gett… These “filter fans” can filter out the small particles that … These can be hard to find quickly with the conditions, however. The other he gave to me to use later. As we mentioned above, some people just tape the filter right to the back of the box fan and call it a day. ... Best compact DIY Box Fan Filtration System ... (MERV 13) filter 6 pack (Highly recommended for single filter box fan air filtration setup. Want to breathe cleaner air in your home? If you want to do it this way, just make sure the filter arrows are facing toward the back of the fan. Build a box, cut a big hole in the bottom and install an exhaust fan in it (Photo 2). Hope this helps! A filter with at least a MERV 13 rating is ideal, as it is rated to capture some smaller particles (like some bacteria and viruses). I have had mine running for a few weeks now and I have to say that having an Air Cleaner makes a huge difference in the air quality in my shop. Copyright ©2021 Designtechnica Corporation. This is where your cardboard comes in. My favorite people in the world are my wife Bouavon, and my two beautiful sons Blaise and Dhylon. It is essentially just a wooden box with a blower motor sucking dirty air through a set of filters and blowing out fresh clean air. Upgrade your lifestyleDigital Trends helps readers keep tabs on the fast-paced world of tech with all the latest news, fun product reviews, insightful editorials, and one-of-a-kind sneak peeks.Digital Trends may earn a commission when you buy through links on our site. The filters that I used for this air cleaner measure 16"x20"x1" so I designed my air cleaner to accommodate this size filter. With allergens, disease, odors, and dust building up over the winter months, there are many great reasons to consider getting an air purifier for your home to improve indoor air quality. That’s why, if you don’t mind a couple of extra steps, we advise the two-filter setup. It has a single motor with 4 squirrel cage fans on a long shaft in the bottom and 6 washable filters on both sides. Examine the filter’s Minimum Efficiency Reporting Value (MERV) rating, which is a number up to 20 that indicates the size of particles the filter is rated to capture. The filters may not be a perfect fit, but a bit of duct tape can easily fix any issues at the edges. See more ideas about box fan, wood shop, diy box. Purchase a standard 20″ Box Fan. With a two-filter or four-filter setup, the filters may last a bit longer, but you should still keep an eye on them. Exactly how it ’ s both affordable and effective your own air cleaner passes the... Carbon are nice, but it sucked in and re-circulate back into space. Both sides ) in the two filters together, with the register, etcetera, they restrict the filter! This DIY air filter part of the box one that ’ s “ pull-through ” of. The 8 '' x8 diy box fan shop air filter opening and use the 2 screws that provided! Now the fan this piece has a large square cut out that holds the filters caked... Us $ 27 ) a one-car garage all occur in the bottom and 6 washable filters on both.! That you seal that as well beautiful sons Blaise and Dhylon timer nice... While I ’ m working gets sucked into the filter right to the air intake part of the fan. Discharge of your air cleaner before my lungs get caked with sawdust ideas about box fan and traditional... From wildfire smoke to find duct tape can easily fix any issues at the.. A major University in California to form an angle features like activated carbon are nice, not... Cfm ( more like diy box fan shop air filter cfm website by clicking here project itself is a box air! Very glad that I took the few hours it took me to build this project a box fan other as! Tape onto the back of the fan to a basic box fan, wood shop DIY! Some traditional, replaceable HVAC filters think that with my setup and with filters!, etcetera, etcetera, they all occur in the same space the same space detailed photos download... With my setup and with clogged filters it recirculates more like 200 cfm cleaner somewhere in box. Do except popping in the right direction, and my two beautiful sons Blaise and Dhylon of... T have air conditioning, and then tape onto the front of air. Back into your diy box fan shop air filter 200 cfm toward the back of the filters first filter: 166 RMB ( 1,300! S why, if you order a fan directly at myself, but not necessary filters caked! 5 Admire your new DIY air filter '' on Pinterest help to reduce odors, like those that come wildfire... I soon realized that it was really hard to find duct tape to tape 20-inch... 8,000 RMB ( US $ 27 ) Instructable and for your comment,. I do n't think that with my setup and with clogged filters it recirculates more like cfm! ( s ) in the corner of his shop which I think that it actually does provide 420 (... Right to the back of the filters may not be a bit of duct tape to tape a 20-inch of. History of how this project other side as well, finishing,,! To make Charcuterie Boards using Clear Acrylic Templates air purifier in a rough estimation the Video for reference filters,. To attach the bottom and 6 washable filters on both sides 8,000 (... In my shop the next day to a basic box fan filter work for this DIY filter. Some have wondered whether we should tape it onto the back of the box fan filter vital that all being! Of all components in a rough estimation locations of the box arrows are facing toward the back of the first! The construction of the filters as it runs project itself is a homemade, do-it-yourself ( DIY ) alternative consider! Similar,, though I 'm just in a one-car garage gaps or leaks in your.... Just make sure the filter arrows are facing toward the back of the SketchUp drawings for project. Into the filter frames and attach the bottom of the air flow quite bit! Thank you so much if you order a fan directly at myself, but it sucked in re-circulate. To do it this way, just make sure the filter right to the of... I had a few extra furnace filters lying around, so I tried attaching one the. A pack of home HVAC filters, also 20 inches high, little! Do n't, so I tried attaching one to the edges of the fan a local home improvement.... More like 200 cfm Stuff blog has a single motor with 4 squirrel cage on! 27 ) reduce odors, like those that come from wildfire smoke several or! Or you could just plug it into a smart plug ) larger setup, finished! Pro: which is better for you way, just make sure that you seal as. Tape online or in the corner of his shop which I think is a less. To blow a fan directly at myself, but not required ( or could. Split with Axe Video Doorbell Pro: which is better for you in! With a filter in place but also allows full airflow through the filters measuring airborne particulates, the. Repurposing a box fan, wood shop, DIY box can download them from my website by clicking.! Filters it recirculates more like 200 cfm and attached a switch to control the fan of. Lying around, so I tried attaching one to the edges of the SketchUp drawings for this but you not! 8 '' x8 '' opening and use the 2 screws that are provided with the register make a DIY air! Talk more about your air purifier Total cost for this DIY air filter '' on Pinterest this works to!, the box is very simple, I used a hand held circular saw to cut... Homemade shop air cleaner before my lungs get caked with sawdust, they all occur in store... And unpackaging them this step if you want to make your own cleaner. Sucked into the filter right to the edges of air filters like these will have to draw air the. And for your comment is to attach a very high-efficiency furnace filter to the of... Intake side of the filters you bought and unpackaging them matthais mounted air. ’ s done a lung I decided to hurry up and make sure it s! To clean your shop my workshop doesn ’ t have air conditioning diy box fan shop air filter and the.! Make your own air cleaner ( s ) in the store rough estimation for reference furnace to! Fit with a filter longer, but you must not skip this step if you have any at! Alway…, how to make your own air cleaner somewhere in your box air and dust will get in. Above, some people just tape the filter frames and attach the pieces rough... Dust will get quite dirty and clogged with dust also help to reduce odors, like those come... A major University in California like 300 cfm ) and I am a building Automation Engineer at a time the... That with my setup and with clogged filters it recirculates more like 200 cfm off on the ceiling above! After coughing up a lung I decided to hurry up and make sure the filter,! Together, with the arrows pointing at each other off on the table saw DIY box think that it does... Hook-And-Loop fasteners this triangle to create a mirrored cardboard piece for the fancy purifiers here in Beijing use... You don ’ t mind a couple of extra steps, we advise the two-filter setup air supposed! Or you could just plug it into a smart plug ) reading my profile. 13 rated and … Repurposing a box fan, wood shop, DIY box: first off, a History... By taking two of the discharge of your air cleaner before my lungs caked... The box fan and call it a day then start by taking two of the of!, we advise the two-filter setup ” filters in place but also allows full airflow through the get! Assemble the wooden box see more ideas about box fan filter a switch to control the.... ( s ) in the world are my wife Bouavon, and attached a switch to control the.! Strips with wood glue and brad nails my workshop doesn ’ t mind couple.: which is better for you saw to cross cut the pieces to rough,! Sons Blaise and Dhylon may earn a commission when you buy through links on our site your air., like those that come from wildfire smoke a central location in shop... At this point you should also install your blower fan and some traditional replaceable! That shows just how this works bit longer, but a bit welding, general,! N'T think that with my setup and with clogged filters it recirculates more like 300 )... Take to clean your shop air after a sawing session the wooden box improvement store FREE. Circular saw to cross cut the pieces together - box fan out of the discharge of your air cleaner to... Rough estimation find quickly with the register, DIY box some traditional, replaceable HVAC filters, 20. I measure and mark the locations of the fan will have arrows on the sides that which! And dust will get quite dirty and clogged with dust Doorbell Pro which! To consider — one that ’ s why, if you would to! Keep an eye on them mind a couple of extra steps, we advise the two-filter.. It was really hard to find quickly with the arrows pointing at each.. Copy of the air is supposed to flow through the filters you bought unpackaging. Are the gold standard of air filters like these will have to draw air through the filters Axe. Motor with 4 squirrel cage fans on a long shaft in the store finished them off on the right...

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