How to build a Shop Air Cleaner and Paint Booth Ventilation System
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- čas přidán 15. 02. 2019
- In this video I build a Shop Air Cleaner AND Ventilation system which kills two birds with one stone by featuring an Air Cleaner and an Air Extractor in a single unit. In a nutshell, this basically means that you can use it to filter and clean all the sawdust out of the air and then quickly convert it to an air extraction unit where you can send fumes or smokey air out of your shop to the outside. The unit was designed to use 8″ ducting and four 16x20x1 size furnace filters.
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As a guy with experience in ac/ heating i would suggest you think about double walled insulated duct going thru your wall. Theres a good chance of moisture gathering on the duct and dripping down inside your wall and causing mold and rotting wood. Nice cabinet work. Design was good as well. You do realize youre never going to see the rest of your house now. I made my shop so cozy i forgot what my dogs looked like. What house?
love the way you narrate and describe things!
This dude is a genius, that is an awesome idea. I really like the air diverting idea, mind blowing.
Fantastic design, thank you so much for sharing this! I’ve been wanting to make something just like this for ages, your design adds a lot of features I hadn’t considered. Subscribed, look forward to seeing more from you 🤘🏼
Well done! Also nice to see someone that still knows how to use a Radial Arm Saw.
Very nice. When thinking about to build an air cleaner and starting to gravitate towards using a bigger motor such as this, I've now been thinking that perhaps it should be a dust extractor at the same time. So pretty much this design, except that the pipe for paint booth would go to a table saw instead. The motor could even be a wall-mounted extractor, though the cheapest ones don't seem to move as much air as construction air blowers and the like.
12 foot ceilings, awesome. I like this idea and have my old furnace blower that I intend to do exactly this, thanks for sharing this idea. BTW I have a very similar Garage heater and it's awesome!
Well done, Tommy. That is professional looking. I look forward to more videos.
Thank you!
Smart build
Great video. Exactly the direction I need. Thanks!
Thanks! Glad it helped!
Super clean build! I definitely picked up some tips for my build. Thank you!
More and more things seem to be in even metric sizes, and the inches specs are rounded. Good idea to measure and make sure for things like filters etc…
Nice job!
Interesting design.
Nice job. I just had a new furnace installed and plan on building just an air filtration unit with my old motor and cage. Thx for sharing.
They work great for that purpose. And they're pretty quiet too.
Good job,
Nice work on the video. You put a lot of thought into the design. Great job! You really caught my attention mentioning where you bought some of your supplies...Save big money...LOL. I worked for them for many years.
Save BIG Money at Menards!!! lol
Since paint molecules are larger than air, if you mount the filter at the very bottom you may get better filtration results at the booth. Great video!
That is badass
I used a downdraft range fan... Which is quite than everything else on the market. It's blows lots of air out and sucks a lot too. The good thing is I can find ducting on the market or from my work place.
Do you have a picture or a link to the one that you used? Any idea what the CFM rating is?
Awesome built Tommy and most importantly very good for the lungs!
Awesome work
wow first time Ive seen that router with a bearing....Awesome
It works great!
Awesome job on the build and the video!
This is the best shop air cleaner build I’ve seen so far on CZcams. I like that you used a powerful blower and not something like a box fan.
Thanks! It works really well and I found myself using it to cool down the shop in the summertime as well by pumping the hot air outdoors while sucking in air conditioned air from the house.
@@TommyTompkins Do you experience any pressure differences in the workshop, due to fan power. I'm guessing that in enclosed room it could cause some pressure discomfort.
Excellent video. Bought the plans; appreciate the attention to detail. All the best to you.
Amazing video thanks for loading
Glad you enjoyed it!
Thank you so much for the detailed video and especially explaining why you chose to have a belt driven motor mounted OUTSIDE of the fan 0:43
Yes that was really important. Fume fire hazard is something I was not actually even realising. Also this powerful fan (without filters) can suck in screws or some small metal chips, which could cause problem to engine living inside the duct system. Very smart indeed
Nice job that is practical and cheaper that store bought ones. I know my buddy last year spent a fortune on his spray booth and had to get a sprinkler system to it as well but that's because he runs a business and safety requires he does that. Back to the build the portion of it that you made is very in-expensive and great job on making possible to have a affordable one in the average shop
Thanks! I think you meant to say the one I made is very "in-expensive" rather than "expensive"?
@@TommyTompkins lol is i did sorry about that.
Hi! More rpm with pulleys will help to get perfect air flow..! 😉
Love it!
Thanks!
great job!
Just subbed based on this video. It's incredibly well done. Now to watch the paint booth video.
Nice❤
nice
OK so first of all, cheers to you Tommy for helping me solve two problems at once (get two birds stoned-Ricky) I couldnt log into my paypal account fast enough to buy the plans. For anyone considering buying the plans, they are very professionally done, almost like an actual book, not just some wordpad document like Ive seen done and been duped a couple times by. Money well spent. I bought a furnace blower in a plywood box that a dude was using as a blower fan. Was going to modify it to work as an air cleaner, but this solves my fume issue (fiberglass-polyester resin=styrene) as well. This just saved me probably close to a grand.
Awesome! Glad to hear that you like the plans! I still think this is one of the best additions to my shop that I ever made.
Very nice! Thank you for sharing.
Nice design
Thanks Charlie! Hope all is well with you.
@@TommyTompkins Likewise! Are you going to George Vondriska's Meet the Maker event on the 17th?
@@JackbenchWoodworking I was thinking about stopping by. I’ll probably see you there!
@@TommyTompkins Great!
Great project! Thanks for sharing!
Dope! This is worthy of startup of it's own
A startup?
Great idea and execution! Could you provide a link for the remote control outlet please?
i was thinking a sheetrock jack might have been able to lift the blower assembly, i like the duel usage my wife could use a paint booth add on
I am moving you to the top of my watch list you got some great ideas
Awesome! Thank you!
When spraying solvent based finishes you should use an explosion proof fan. You’re taking a very dangerous risk
great vid Tommy. The attempts to fit the unit to the ceiling looked exactly like me in my workshop...am sure I should get some help sometimes.
Great job! Makes sense.
This video help me a lot but can you tell me what program are you using it work pretty good
Very nice....Somewhat a little over kill, but over all it's a nice set up.
Thanks Brian. I really don't see it as overkill at all. Sometimes I wish it was bigger! Haha
Looks like a swamp cooler motor and housing
I was told that it came out of a furnace.
Hi Tommy! I just caught up to this video looking for filter options and this is a great plan!
I, too, ran into the dimensional issues you noticed with the plywood. I found that Baltic Birch plywood is made to metric dimensions @ 18mm or .708 inches while American plywood is a genuine 3/4 inches or .75 inches.
Had me scratching my head till I researched it for myself. Take Care!
so how would one go about building a fume hood for working with acids that attack metals?
This is a great video do this work for a paint boo
Don't see radial arm saw that often any more. Is really like one to replace my sliding miter saw.
On that vent you used that goes outside the vent has a screen in it that I’m sure you could get a lot more cfm out of the blower if you cut out that screen. I really like the design of the blower you built btw!
You might be right. I haven't cut out the screen because it still seemed like it wasn't very restrictive and has fairly large holes. I might give that a try though and see how it goes.
i want to use one of those remote receptacles but most that i find are huge. so i will get those power bars that are 4 feet long and can accept the biggest plugs.
That works too.
Great video! I noticed the MN shirt at the beginning and your company was lift bridge furniture so I decide to Google it and realized we live in the same city haha small world!
Awesome! Small world!
Very nice video and assembly. The MERV 7 prefilter dropped your blower flow significantly when you placed it in front of the 8 inch intake because you were only using the 8 inch round area of the filter, not the whole filter area. You'll see a lot less pressure drop if you fit that prefilter into a full-size housing in your paint booth before necking down to the 8 inch duct.
Rather than measuring it all out could you use a sheet of peg board to mark where the holes need to be?
Great job. But need more intake air. 8 inch intake not enough
Wow, really great ideas and nice execution! I'm looking to make something like this but smaller scale.
I just wonder though, how to make this all setup to live outside (on balcony in my case).
First I just don't have space inside and the other thing I just would like to have this noisy devices outside.
This changes a setup quite a bit but still plentiful great ideas with your vid. Thank You
Pure genius! I'm absolutely going to build a version of this!! Thrilled i found your video, I'm subscribed and look forward to seeing more of your posts.
Great detail! Looks like you are using it as an exhaust; why would you need a filter to pump air outside? You only need it when you are using the diverter to keep your garage air clean.
Thanks! The filters that I use when painting are only used to try and capture the majority of the overspray so that it doesn't cake up the inside of the fan blades at the siding on the outside of the shop.
Nice project, Tommy. Excellent design and execution as usual. I truly enjoy watching you both design and build your projects, whatever they might be. Troy
Thanks Troy!
You should make a box to cover the motor
Great design and well presented. You put a lot of thought and work that benefits us all, good job. The diverted part, did you think of using a a door type baffle instead of swapping the whole part?
Thanks! Yes, I did look at door type baffle's to start but none of the ones that I found sealed very well so I decided to make my own which seals MUCH better.
@@TommyTompkins I meant did you consider making your board a swing door? Should be easy to seal and a clasp to close.
After reading your comments throughout, I can see you thought this out more than most of us imagine. It works for you and it’s worth every moment you put into it.
I’m considering doing one for my garage which I use only in summer, so I won’t need filters to get rid of dust and humid air. I’m now looking at a blower setup thanks to your video, makes sense.
Kewl
Just noticed your Reznor garage heater, is there any danger using that when you spray?
Great question! The presence of the Reznor heater actually contributed greatly to my decision to build this unit. I was getting ready to do a lot of spraying in the garage and with it being cold here in Minnesota, I knew that I'd have to keep the garage doors closed with the heater running. Obviously, that's a potential recipe for disaster. I knew I had to find a way to keep my shop heated while being able to vent fumes at the same time. I built this unit and used it with my spray booth to spray about 250 Pegs & Jokers game sets. That's a ton of spraying and it worked excellent at drawing out all the fumes. I could spray for hours, put everything down, step back 15 feet and not smell a thing. Speaking of combustible material...very fine sawdust floating around the air is also a potential explosion hazard. The air filtration feature of this unit helps to minimize that risk as well by removing all those fine particles. Here's a quote directly from Reznor:
"WARNING: Gas-fired appliances are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, or atmospheres containing chlorinated or halogenated hydrocarbons."
I nearly had a stroke a couple of years ago when i went to buy some unistrut. Its 4 times high tgan it was 10 years ago. It wasnt cheap then.
Tommy
Nicely done sir! Very informative, nice workmanship. Can you share what size squirrel fan that is in CFM? And how noisy is it with it on? TY
Thanks! To be honest, I have no idea what the CFM is for the squirrel cage that I used. But it's very quiet and MUCH MUCH quieter than the first blower that you see in the beginning of the video. I think any standard size furnace blower / squirrel cage would do the trick.
colder climates this I think will pump warm air outside,,,,, leaving Vacuum to pull fresh cold air inside.... (Not sure if thats a bad thing)
A y-hose and blast gate would be simpler than that diverter contraption you’ve got going there, and no loose bits to lose.
I think you’d lose a lot of airflow going that route. I’m very happy with the contraption.
In a typical ac motor like that there aren't any brushes where sparks occur. No ignition possible.
Hi Tommy, I am from Viet Nam. please advise what software for your design. Thanks Tommy
Hello - I use Sketchup
Can you tell me more about the fan? 120 volts? HP? CFM? Output diameter? Thanks,
Paul
Yeah it's 120 volts but honestly, I don't know much else about it. It was a Craigslist find.
Great video, Did you do anything for a fresh air inlet to offset the air you are removing from the shop?
Thanks! No, I didn't add a fresh air intake because I found it sufficient to just crack my garage door which allows it to suck in fresh air. In the winter when it's really cold, I open the door that goes into the house and turn on the air exchanger on my furnace and that seems to work well too while keeping the shop warm. Sometimes it's kind of a pain to crack the garage door since the wind can blow dust around so eventually I'll probably add a dedicated air intake somewhere.
I thought for any fan exhausting paint and possible solvents should be a fire or explosion proof motor as a safety precaution?
He explains it in the video, but his fan and the motor are separated. The only issue is the motor is still exposed to the elements of the shop that he is trying to evacuate. This design would work really well if it was blowing or exhausting in/out of a sealed room from the outside.
I'm no expert , just another nerdy DIYer. I don't think you need to double up (stack) the filters. The higher the Merv number the smaller the particle size the filter will, well filter. Two 6 Merv rated filters does not give you a 12 Merv rating. Additionally airflow is based somewhat on surface area. A 20X20 1in pleated filter has 4.7 sq feet of surface, while a 2in pleated filter has 8.1 sq feet, and 4 in has 15.4. The resistance on a 1 in. MERV 7 and a 4 in. MERV 11 are approximately the same. That being said. Great build!. I have been looking for ideas to combine both dust filtering and air extraction into the same system and this have given me some great design ideas.
I think you might have misunderstood how I'm using this. I'm not adding two filters to increase the Merv rating. The reason for using two filters is so that I can use a more expensive, higher Merv filter on the inside and a super cheap $2 filter on the outside. Since the outside filter catches the majority of the sawdust floating around, I can change those out several times before needing to change out the more expensive Merv filter on the inside. It's all a fine balance of saving my lungs, saving money, and preserving airflow. To be honest, it's been working out great and I wouldn't change a thing.
@@TommyTompkins Yes I thought that might be your reason.. but I was getting a little long winded... A great build, at some point I will probably build something similar. as painting in a garage in the winter time can be quite toxic.
Props that is a really nice set up, did you use a uv resistant sealant on the exterior? I have found that some of the caulking out there will shrink over time when used outdoors.
Honestly, I don't remember if it was UV resistant but I think it was? It's held up great so far.
Hey, question though: does that Reznor heater take... 9-inch nails??? Eh??? EH??? ^_^
Love this build! Great job!
lol!!!
Nicely done! What is the exact brand/ part number for the remote power switch?
Thanks! I'm using this 3-pack for my dust collector, air filter, and shop lights: www.menards.com/main/electrical/light-switches-dimmers-outlets/wireless-controls/indoor-remote-outlets-3-pack/ylt-12/p-1444425969250-c-12683.htm
Sweet project...I have a question while doing your airflow test did you take amperage readings off camera. Just wondering
Glad you like the project. No, I didn't take any amperage readings off camera.
I like the idea! I’m trying to come up with something similar for my shop. But, when going to extraction mode how do you make up that air you are pulling out of the garage? I have a forced air furnace (and even with your reznor) don’t you risk pulling out too much air and furnace not working?
I have an air exchanger on my furnace that turn on and run to help bring in outside air while I'm running the shop in extraction mode, then I leave the garage door into the house open to create an air flow. It works very well. I've also run the shop in extraction mode without the air exchanger on and that works too, but you probably don't want it trying to pull air through every little crevice in the home. Another option would be to crack the garage door slightly so that it sucks in outside air while it's running.
Great job and video, Tommy! I will likely order and adapt your plans for a farm truck and equipment paint shop.
At this configuration, filters do not work in full capacity. Am I right? The inlet hole is small and placed too close to filters. It would be better if you have an expansion chamber before filters. It can be a square or pyramidal shape.
Initially, I was concerned about the same thing but when the filter gets dirty is fairly evenly covered. It works pretty well, but there's probably room for improvement.
holy smokes this is legit. how about I just pay you to make me a similar one for a paint booth
Okay then. Money talks!
@@TommyTompkins shoot me an email when you get a second and we will make that happen. eevanstn@gmail.com
Nice job! Although, how about just hanging it with chains, eye bolts, and carabiners? Just a thought.
Be careful to regularly maintain the blower assembly if the bearing fails or anything rubs inside the housing you risk starting a fire or explosion when spray painting. For spray painting it is better to use positive pressure so nothing about the fan is in the air stream but if your doing a negative pressure setup you should be using a blower with an aluminum wheel so that it is spark resistant.
Good point. The bearings in this unit are brand new and were replaced prior to building this. But I hear what you're saying and it's a good idea to maintain the bearings and blower assembly if anyone does choose to go this route.
Many things need to be in place for an appropriate paint booth, seek a professional to install a UL approved paint booth. Novice paint booths cause fires, explosions, and potential serious damage and injuries.
Great job, and great video. I see you painting at the end. My question is... do you see any paint on your siding outside your house?
No visible sign of paint or any discoloration on the siding outside. But I typically spray finishes like Arm-R-Seal and don't do a whole lot with bright colors.
@@TommyTompkins Thank you. I’m definitely following your channel.
Tommy, this was a Great Video addressing my concern on venting paint fumes. The utilization of a belt driven fan versus a box fan or explosion proof motor was brilliant. I have scoured the internet for the fan you used with no luck. I saw a comment below that someone thought it was a swamp blower. Your response was that you were told it came out of a furnace. Do you have any further details on the assembly and where one could be had? Thanks in Advance!
Hi Greg - I see them pop up all the time on Craigslist and Facebook marketplace for next to nothing. Here's a listing right now that has two of them: facebook.com/marketplace/item/925667761166094/ They clean up pretty well and you can always add new bearings. If you wanted to buy new, you can find them on Grainger but they'll be much more expensive: www.grainger.com/search?searchBar=true&searchQuery=belt+drive+blower
@@TommyTompkins Tommy, thanks for the quick response. About an hour after i sent you the message i did find several available commercially. I also agree with you that they are a little on the pricey side. Thanks again for the Brilliant Video. Its Gentlemen like you on You Tube that make me look smart in front of my neighbors when i plagiarize you ideas. LOL!!
@@gregoryhilker3739 lol! Well glad I can help make you look smart with the neighbors. Good luck finding a blower.
What do you do during the winter to help retain heat? I'm also in MN, want fresh air in my shop but also don't want to triple my heating bill!
In the winter, I mostly just use the filter which just recirculates the heated air in the shop. I don't do a lot painting in the winter, but when I need to use the exhaust vent, I'll crack the door.
@@TommyTompkins thanks for the reply! Very cool build!
@@TommyTompkins What effect does the paint fumes have on your unprotected heater when you do paint in winter while that is running? My contractor told me he would not honor warranty on the heater if painting indoors.
Nice detailed video and seem like an efficient way to keep the shop clean, thanks!
Thanks! It works very well. Over the summer I found that it also helps cool down the shop and pump hot air out while bringing fresh air in which is nice.
The handsaw didn’t do a really nice job with the cut.......you did. Excellent
Thanks!
What were the "cheap" blue fiberglass filters you got instead ? (brand) Thanks !
yeah i see why you wanted the external motor. Having a flame thrower spewing flames from the side of your house would likely get the neighbours excited
Sorry tommy I might not explain my self I would love to know the name of program that you are using in your computer
Hello Hugo - the program is called Sketchup.
Hello, Would you be able to comment on the horsepower rating of the motor itself? You have a pretty good shot of the motor spec plate but it's blurry. I've got a 1/4 HP motor I'm trying to replicate your build with but I'm not sure if it's enough power.
If I remember correctly, I used a 3/4 HP motor.
@@TommyTompkins @Devin Nasar - The motor is 1/3 HP - it's a Dayton model 5K282 - 1725 RPM, 6.2 Amp
@Devin Nasar - Your 1/4 HP motor would likely be adequate based on the fact that the motor in this video is 1/3 HP, not 3/4 HP as stated below.
Hello again, I'm finally in a position to build this device, and I didn't know if your instructions include the specs for the centrifugal blower you used. I'm trying to source my own at the moment and want to know how big I need to go. Thanks!
Hello Devin - I didn't include any specs for the blower other than the size of the blower that I used in my specific application. Here's the text copied directly from my plans:
"Step 2: Measure the Blower
The blower housing is going to fit inside of the Main Enclosure so before you start cutting wood, you need to make sure it’s going to fit within the default measurements. These plans were designed for a blower that is no more than 16-1/4” (412.75 mm) tall and 18” (457.2 mm) wide with some room to spare. If your blower is larger, no problem. Simply modify the dimensions in these plans to make your enclosure box a bit larger. If you’re modifying the original dimensions, just remember to choose a filter size that will fit your enclosure dimensions (the default filter size is a 16x20x1)."
amazing work! the best parts i like about these kind of builds is the floorjack ducttaped to a piece of plywood on the ladder :D. this is engineering!
Glad you enjoyed it!
Nice work. I would kindly point out that when using it as an air extraction unit be careful that your heater is not on. It could cause issues as it was not designed to work in such a negative pressure environment.
What types of issues could I potentially experience? Just curious. I've been using this for about 1.5 years now and haven't had any issues with the furnace that I know of. But I should mention that I use it in extraction mode much more during the summer months to draw in some dry air conditioned air from the house and pump out the hot humid air for some climate control. When I do this, I also turn on the air exchanger in the house thinking that it might help with the negative pressure. The only time I do this in the winter is when I'm painting which isn't that often.
@@TommyTompkins it can cause the pilot to go out or even the furnace itself while it is running. The furnace was designed to use the air in the room for combustion but when the room is at a negative pressure it could back draft the exhaust into the garage instead of out of the flue.
@@jacobframe8769 Good to know. Thanks!
What software is that for your design?
Thanks Tommu.
I used Sketchup to design everything.