How to build a fume extractor #1 of 3

In this video I'm demonstrating how to build a DIY soldering fume extractor out of old computer fans.
Inhaling flux fumes is not a pleasure and it may be bad for your health. In extreme cases it can cause asthma.
Build your own soldering fume extractor and stop inhaling flux fumes.
See part 2 of 3 - How to build an automatic fume extractor, here:
• How to build an automa...
If you want to use old computer fans, clean and lubricate them well to make them quiet. See how:
• How to clean a compute...
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Website: ElectronFun.com
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Video, edit, voice by Chris Lorkowski
Music:
"Cold Funk" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
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[@paparoysworkshop]

I don't think that filter is removing any of the fumes. They are just dissipated out the other end. You would need a proper filtering agent such as activated charcoal and maybe a hepa filter. But as long as you don't see smoke coming out the other end, you might be fooled into thinking it is working.

[@ElectronFunCom]

Thank you for your comment Roy. You are right, a carbon filter would be much better. Many people commented about this and I will use some kind of a carbon filter in the final version.

[@paparoysworkshop]

ElectronFun.com I still enjoyed your video. It's a work in progress. My comment was intended as constructive criticism, not negative criticism. I have recently subscribed to your channel and so far, I like what I see.

[@ElectronFunCom]

Constructive criticism is a very positive thing, because we can learn from our own mistakes - thank you very much for that and for subscribing.

[@UrgenthelpwithSubscriptionsHel]

Carbon filter 60cm from hood cookers. You can buy from Ebay. $4-5

[@paddajunior744]

Your videos are so useful and you really explain it so well that any person with little or no experience can understand and follow. Thank you so much.

[@aaroncummings970]

I have watched a couple of your videos. You have a good voice that exudes confidence. Thank you for sharing your talents. God bless you

[@rampatil3055]

kzbin.info/www/bejne/iZy0ZY16nr2khs0

[@khalidmkhan]

Great cast. Very handy and important topic. Thanks for uploading.

[@ElectronFunCom]

+khalidmkhan Thanks a lot :)

[@GaryDmedia]

Now that is innovative! Amazing what you can do with obsolete computer fans. Nicely explained. Thanks for sharing the build.

[@ElectronFunCom]

+Simple Audio Tips Thanks a lot for your comment :)

[@artbyrobot1]

how in the hell do you figure computer fans as being obsolete? They are not obsolete and are still used in computers very much so.

[@NcGamingCreations]

you need a prefilter, hepa filter, and an activated carbon filter. I recomend using a ducting system inside of a plastic storage bin. you can make a compartment for the fan and a compartment for the filter material. It might be more expensive to make a better setup, but paying for medical bills from lung cancer or COPD is more expensive.

[@allabouthim03]

I used a 110v fan i had in my junk drawer and ordered some carbon filters from alixexpress. Works great.

[@ElectronFunCom]

Carl Bradley Thanks for sharing your idea. Is it very noisy?

[@allabouthim03]

ElectronFun.com mine too! but the important thing is they work, lol.

[@ElectronFunCom]

I didn't say my fume extractor was noisy :)

[@allabouthim03]

Oh, not sure noisy is the right word than, it's forceful. Moves a lot of air fast. I did a youtube video on my channel, Note my kitchen hood fan is running in the background also.

[@ElectronFunCom]

Carl Bradley It's hard to tell because of the background noise, but your fan does the job pretty well.

[@aleksandrmunos4115]

Felicitaciones‼️. Excelente trabajo, gracias por tu tiempo y compartir‼️...👍🏻✊🏻🇨🇱🏴‍☠️

[@jacobsoltanpour1274]

Thanks for sharing. Great video even after 6 years. I am mostly interested in a silent air purifier so I will make use of layers of carbon filter and HEPA vacuum bag cut into size. You are right. I hate the noise of AC fans. Can't run them 24hrs.

[@seckinseckin3919]

i use Electric Foot Switch Pedal . When i need it to suck, i push pedal with my foot so i dont hear noise all the time.

[@MAGICTOUCH_MUMBAI]

Very nice instructable video

[@raulmorel1]

GOD bless you man excelent build

[@ElectronFunCom]

Thank you so much!

[@franki01hk1]

Very awesome good idea!!!

[@rigerdakitty]

I have a similar power supply that I use for hobbies. Mine is the Yihua YH-305D. Good to know other people who make innovative designs use these PSUs.

[@ElectronFunCom]

+Markimoo (TheDarkDestroyer) There are quite a few similar power supplies like these on the market. I guess only the brand name stickers are different. Thanks for your comment and calling my work innovative :)

[@DarwinDunks]

That was awesome.

[@ElectronFunCom]

Thanks, I'm planning to upgrade this fume extractor a bit.

[@michaeloliverossantos8780]

cool... that was awesome!

[@hichambakkala8642]

many thanks

[@ElectronFunCom]

Thanks for watching and commenting :)

[@Lcassinelli2]

Great job, outstanding 😊👍

[@chrislorkowski3950]

Thank you!

[@soonersciencenerd383]

nice build! I made a sawdust collector/vacuum w/ 2 pc fans, a seltzer bottle (neck), connected to a pretzel box, and powered by a 12v wall adapter. works good enough for my wood carving/sanding purposes. any ideas to improve it?

[@ElectronFunCom]

Thanks for your comment and sharing your build. I've never built a sawdust collector, so it is very difficult to suggest improvements. If it works for you, than it's a good project.

[@soonersciencenerd383]

hope you have more videos! great build!

[@ElectronFunCom]

Sooner Science Nerd Thanks a lot! I have plans for more videos :)

[@daniellloydtillhead]

Any idea what the max temperature for these fans are? I need to build a small and easy to clean smoke extractor fan for an experiment.

[@ElectronFunCom]

What do you mean by max temperature?

[@indieartsmidwest4042]

Thank you

[@krimlin85]

thx bro , but Do you think its good method as turbo CPU fan ? can be better than single stock fan ? anyone tested that ?

[@jmemusic]

I have seen commercial fume extractors and they come with only one powerful fan, sucks about 60m3/h or 35 cfm of air; however they are a little bit noisy, like 43 db, but I think this is still tolerable. I saw some review videos and they perform similar to this one, the maximum distance is about 5 inches / 12 cm. So, I guess you could use only one fan. Look for: TOOLCRAFT ZD-153 and ZD-153A fume extractors. They will give you an idea on how to construct yours. I guess the difficult part is to get that cone they use for getting the fume directed directly to the fan.

[@Bianchi77]

Nice video, thanks :)

[@jameswhyte1340]

Hey love this project. I want to build it but would the "Antec TriCool 80mm Cooling Fan with 3-Speed Switch" work? it's on amazing for $3. Idk if it has those negative and positive wires in the same way yours does.

[@ElectronFunCom]

Thanks! This fan will work, the only difference is that you have a switch and 3 speed variants. I can see at least 3 wires in the photo - black (ground), red (+12V), yellow (sense wire used to determine the fan's speed). You need only ground and +12V.

[@jameswhyte1340]

Could I just snap the sense wire off? Would that effect any of the performance? What exactly does that sense wire do? THANKS!

[@ElectronFunCom]

James Whyte You can get rid of the yellow wire without consequence. The sense wire just gives you information how fast the fan spins - two pulses are sent with each rotation of the fan, so you can easily calculate RPMs.

[@jameswhyte1340]

Awesome! Thank you i'll be sure to give updates when this is complete!

[@ElectronFunCom]

James Whyte Thanks! Keep us posted.

[@wakkendul1434]

Threaded rod how much mm it is?

[@jmra6608]

How many volts is ur charger?

[@jmemusic]

I gave you a like because it is better than nothing and it could be improved. I guess you already did on your other videos, which I will watch later. Anyway thanks for the good idea. I would say that a good improvement would be to add some kind of cone so that the fume gets directly to it. Also a lamp arm to make it more flexible (and the carbon filter, but you already know this from other comments). Look the commercial extractors: TOOLCRAFT ZD-153 and ZD-153A to have an idea of what I meant. I guess only one fan would be also enough, but as you see on those extractors, it will be a little bit noisy, like 43 db. I guess this is still tolerable. The suction power of the fans is about 60 m3/h or 35 cfm. Anyway, I guess the theory you mentioned about increasing the static pressure when using several fans of the same type, may be also right. At least on this case, your DIY extractor perform similarly to those two commercial extractors I mentioned: the maximum distance is around 12 cm or 5 inches, which is also enough for hobbyist like you and me.

[@Ziurkyss]

thanks. i just tryed it with one fan but my fan is very strong at about 7 inches candle flame is horizontal . I burned stick in front of fan stick was very smoking and no smoke coming from back. it's good i recommend to make this!

[@ElectronFunCom]

What fan is it? If it's so strong, you can use just one, but figure out a way to mount a filter and your job is done.

[@Ziurkyss]

ElectronFun.com i used same foam as you. I mounted foam with wire. It's really working good. Maybe i will make adjustable stand for it

[@ElectronFunCom]

testas 3339 Nice job.

[@seckinseckin3919]

@@ElectronFunCom i have 4 pieces 220 AC fans so that means more fans you stick together then stronger vacuum you have ??

[@ElectronFunCom]

@@seckinseckin3919 It depends on the shape of your fan blades. I found out while doing my tests that mixing different blade shapes usually gives worse results.

[@Skidtire]

Hey Electronfun i think this is a great project and i am going to make myself one i have a question: What size threaded rod did you use in this video also what soldering iron are you using Thanks :D

[@ElectronFunCom]

Thanks a lot. I want to upgrade this project in the future. First thing would be the filter - I would use a carbon filter. As far as I remember the rod was 3mm thick. The soldering station is not worth mentioning, it's a cheapie - Zhaoxin 936. I couldn't afford e.g. a Hakko. The prices are too high for a hobbyist.

[@Skidtire]

ElectronFun.com Thanks

[@Skidtire]

ElectronFun.com im building one now when im done i will make a video response for you :D

[@ElectronFunCom]

Skidtire That would be great! I'm waiting for your video :)

[@khalidmkhan]

Yes, I like your channel and have Subscribed. Keep up the good work.

[@ElectronFunCom]

+khalidmkhan I'm glad you like my channel :)

[@gwbenites]

I guess if your only goal is to keep the fumes from going up your nose, it's a success, but if you want to get the harmful particles from lead and flux (I think it's the rosin) fumes, you have to go through a carbon filter (for the smell only) and a HEPA filter (for the nasty particles smaller than 3-5 microns). Also, the fumes cause way more worse things than asthma, it crystalizes your lungs for one, along with lead poisoning!

[@terrytytula]

You need to add a stator between each fan. The fan causes the air to not only flow, but it imparts a spinning motion to the air. The stator cancels the rotational effect and increases the efficiency. If you want an example of this just look at the compressor of a jet engine.

[@obxzeke]

What do u use as a power source?

[@ElectronFunCom]

I use my bench power supply for now. I want to upgrade this project in the future.

[@sunchaserw1477]

how to find out the total voltage needed for the fans? In this case, you mentioned it is 12V.

[@ElectronFunCom]

Voltage can be found on a sticker. In my project all fans were 12V and I wired them in parallel, so I didn't have to change the voltage.

[@InterCity134]

Its a good start - it pulls the fumes away from the solder tip.. so not going straight up your nose, but now the fumes will be pushed out the back of the fan stack and dispersed through the room, so if your breathing the room air, you still inhale chemicals. That foam you blew it through isn't activated charcoal, so nothing is going to get filtered out, just distributed ....

[@ElectronFunCom]

That's true, it's better than nothing. I know I should have used a carbon filter. Thanks for your comment :)

[@VR2ZXP]

Your idea is good but I thick the filter is not thick enough to filter the fume. Suggest to put one between each fans.

[@ElectronFunCom]

VR2ZXP I should have used a carbon filter - it would work a lot better.

[@JoeNathan42420]

I bet that lil thing sounds like a jet doing show of force 🤣🤣👌

[@Gunchulis]

Fans on top of each other doesn't make anything spin faster or push more air. You would be better off with 2 fans connected with some kind of pipe in between, so the fumes get pushed out further away from you. If you can't see them, that doesn't mean they're not there.

[@ElectronFunCom]

DaGunchijs I like your idea with the pipe and 2 fans - this could work too. Have you tried stacking 2 or 3 fans yourself? It does push more air and it's better than nothing. I know the visible fumes are only a part, the rest is invisible.

[@Gunchulis]

I have tried it myself, even if my understanding of physics told me before i tried that nothing would improve, rather than noise and power consumption. Let's say a fan pulls 30 CFM (Cubic feet of air per minute), stacking another on top won't help, as both spin only as fast to pull those 30 CFM. If you placed them side by side - yes they would pull 60 CFM in that case, as they have bigger "surface" area. Think about it yourself. Cheers! ElectronFun.com

[@ElectronFunCom]

DaGunchijs The theory seems very reasonable, but how to explain the fact that you can simply feel 2 or 3 stacked fans blow stronger than a single fan?

[@Gunchulis]

.

[@Gunchulis]

Placebo Effect. I have done my research and in My opinion it's not worth the effort as only in rare cases you can get up to 10-20% gains. As specific fan blade angles must be combined and some other factors. You are pleased to do what you like and think works better. For airflow on my soldering workbench I used a single 12v 92mm fan which I overvolted to 17volts. Ne noise was tremendous, but worth the extra airflow. It lasted for about 9 months after which the fan's internal electric circuit went up in white smokes.ElectronFun.com

[@GuyVerdonck1]

verru good....

[@ElectronFunCom]

+Guy Verdonck Thank you :)

[@jscix]

You should replace the foam with "cut to length' Carbon Filters. They are dirt cheap on Amazon. :) I am actually doing this same project, and was checking out other peoples designs before I start! I think the Foam can go in front of the first fan to filter dust, perhaps.. but the rest need to be carbon filters, or they are just dispersing the fumes into the room. (It's not as concentrated as smoke) but after a while, your room will be filled with invisible toxic lead fumes, etc. Also if you can get ahold of some HEPA filters (you can find the large box looking ones at home depot/Lowes, etc.)... then just cut a square out of it the same size as your foam blocks. Would prob need to hot-glue the edges to keep it from unraveling, but still doable. With that many filters + hepa.. there would be literally 0 toxins left after it exits the final fan. Nice video though, will sub. Keep at it man. PS: Here is a link to the cheap Carbon Filters: www.amazon.com/All-Filters-Cut-Fit-Carbon-Purifiers/dp/B000U204W2 I will also be using these in my design. If I find a suitable HEPA filter, I'll post an edit here, in case anyone else is interested in building one of these.

[@ElectronFunCom]

Sorry for replying so late. Thanks a lot for the valuable comment and subscribing :) That's true - the foam is pathetic and a carbon filter would be much better. When it comes to the HEPA filter - I'm not so sure about this, because this would probably require a lot of suction force. Have you tried this idea in practice?

[@jscix]

No I haven't, mainly because HEPA filters are too expensive, by the time I bought one to cut up. I probably could have just bought a smoke absorber! However, I was browsing digi-key, and they sell some very powerful computer fans. www.digikey.com/products/en/fans-thermal-management/dc-fans/217 At the moment I just have a fairly cheap fan I scavaged from a computer power supply.

[@ElectronFunCom]

Computer fans are not very powerful, they are supposed to be quiet.

[@ed-jf3xh]

I think 1 fan on each side would be plenty. Put some ears out to the side and direct air flow from a broader area.

[@Sl0baZl0ba]

you can attach it to a bending lamp pipe so you can position with ease :)

[@ElectronFunCom]

Nice idea, but you would probably need a heavy base. Otherwise the whole rig might fall over.

[@Sl0baZl0ba]

ElectronFun.com Maybe something "angled lamp" like system and a clamp on the bottom so it wont fall.

[@ElectronFunCom]

Slobodan Djuric Why not :) I plan to upgrade this project a bit.

[@Sl0baZl0ba]

ElectronFun.com You could even take and old "hand vacuum cleaner" and attach a bending hose and apply the previous ideas on it, that would work nice.

[@ElectronFunCom]

Slobodan Djuric These computer fans are not very powerful and the hose might be a problem.

[@user-uq8tp9qn4f]

Ставлю лайк за видео! Молодец! Очень понравилось!

[@ElectronFunCom]

+кирил иванов I don't speak Russian, but Google Translator helped me understand your comment. Thanks :)

[@user-uq8tp9qn4f]

ElectronFun.com Это вам спасибо за интересное видео!!!

[@ElectronFunCom]

+кирил иванов Thanks again!

[@jp-um2fr]

There are several videos on KZbin where PC fans are driven to destruction. All of them ran at more than 20 V some as high as 40 V. Just for fun I ran one at 18 V for a week solid. It was fine. They are brush less so the only problem might be heat build up but not after a week I think. If you have an old fan that's a bit noisy peel the label of the center and you can add a drop of thin oil to the bearing and a bit of tape to recover it. An extra fan adds about 30% to the airflow but I don't think adding more than that is necessary. Increasing the voltage makes far more difference. Good idea but a better filter is needed.

[@ElectronFunCom]

My first KZbin video is about cleaning a PC fan :) I haven't tried running fans at higher voltages, but it may be an interesting experiment. So many people complained about the filter - I should have used a carbon based filter, that's true.

[@jp-um2fr]

On the other hand a secondhand cooker hood works well, light too. Filters are expensive though. BMW use (or so I read) nylon wool soaked in a mist of glycerin for their air conditioning. Apparently it stops very small particles. The only problem with activated charcoal is it clogs up very quickly. You can't win can you.

[@ElectronFunCom]

Wow, these BMW filters must be quite expensive! I believe the activated charcoal should be more than enough for a fume extractor. You can buy such filters quite cheap on eBay, so it shouldn't be a problem to replace it even once a month.

[@djmmotivational4109]

How to mitigate fumes?

[@Gatsbi]

I was thinking similar but looks like multiple fans are not better than a single fan

[@wintercryptlovespubg2607]

I ask this just as a doubt! Why don't we simply use a table fan against the soldering fumes? Is there anything different from my idea(quite silly) and yours (quite professional)! Hope you would reply soon!!!

[@ElectronFunCom]

+rohith pvr Hi, a table fan would probably blow all your components away :) It's simply a lot too powerful and it's blowing towards your work area, while for soldering a fan that is sucking your fumes is a lot better. My project is not professional, I'm just a hobbyist, who likes to make stuff :)

[@wintercryptlovespubg2607]

+ElectronFun.com oh man! Didn't think of it! Lol! Thank you!

[@ElectronFunCom]

No problem :)

[@gameelders3611]

FYI if you have 30$ you can buy a marine vent fan that will last several times longer than comp fans. If your broke, decent advice.

[@scottbarstow9292]

I don't have much of an idea so I would prefer someone not to be nasty about it, do more fans create a greater amount of air being pushed through the fans?

[@ElectronFunCom]

Fans in series won't increase airflow, but they will provide higher static pressure.

[@YeahNoTellTheTruth]

As others have said, hepa filter is the way to go, however the best design is a fan positioned above with some kind of hood so the fan does not in anyway cool your solder iron. Smoke naturally flows up, hits the hood where the fan is and then gets sucked away. So far you have pc fans sucking air.

[@Aabid_]

Hey where do u get these items ????

[@ElectronFunCom]

Which items do you mean? The fans, the grills or something else?

[@Aabid_]

ElectronFun.com Yes

[@ElectronFunCom]

The fans and grills can be found in old computers, power supplies, etc. I didn't have to buy these.

[@Aabid_]

ElectronFun.com Thanks

[@ElectronFunCom]

No problem :)

[@spoderman15]

Is it better to put them in line like this? I think it may increase the suction, but only in a small area. so you would have to put the FE really close to what you are soldering

[@ElectronFunCom]

It does increase the suction and not in such a small area. However I will redesign this project one day.

[@stevenA44]

I think 1 fan would have been sufficient...4 was just overkill. I've got a lot of those fans but I'd only use 1.

[@TheKiUrrr]

Can you make a video saying: “Show me what you’ve got!”

[@fredrikh2003]

Well... slightly overkilled with 4 fans tho.. as other comments say it you better have 2 fans and a pipe between

[@ElectronFunCom]

I know, you guys are right. I may redesign this project one day.

[@JediOfTheRepublic]

You really only need one fan.

[@ElectronFunCom]

A lot was said about the number of fans in this project.

[@jmemusic]

@tommy aronson I have seen commercial fume extractors and they come with only one powerful fan, sucks about 60m3/h of air; however they are noisy, like 43 db. I saw some review videos and they perform similar to this one, the maximum distance is about 5 inches / 12 cm.

[@STATICASYLUM]

your health should be worth investing in a proper extractor, if not then at the very least invest in the parts to build a proper one. That foam is a retarded joke of an idea, you should have carbon filtration and or simply vent it outside via a flexible duct made for such things, and all should be sealed to prevent leaks cuz the stuff you are venting is poisonous!

[@ElectronFunCom]

+ian olsen I agree, you definitely should invest in a proper extractor, when you are a professional and solder a lot for living. I'm a hobbyist and this channel is for hobbyists - in most cases such people don't use fume extractors at all. I know I should have used at least a carbon filter and I probably will in the last part of this series. In this episode my goal was to prevent the fumes going straight to my nose. Thanks for your input Ian.

[@danijel124]

+ian olsen If you solder once in a while then this is ceratinly enough.

[@danijel124]

+ian olsen But instead of that foam I would use carbon foam.

[@ElectronFunCom]

+danijel124 A carbon filter is definitely better than a piece of foam.

[@ElectronFunCom]

+Vulpes You're right, I know the foam filter is useless and a carbon filter would be a lot better. There were more comments like yours. If I manage to finish this project one day, I would like to use a carbon filter.

[@thekunga]

That filter only filter the big particles... not the nocive smoke itself

[@ElectronFunCom]

That's true, I should have used an activated carbon filter.

[@Ferraday]

I use my lungs to filter the fumes

[@realavx]

1 Delta 12V (252 cfm) will be enough for me.

[@ElectronFunCom]

***** Do whatever works for you. Just don't inhale flux fumes.

[@ElectronFunCom]

+Jaff Tyrone I can use only instrumental music, sorry.

[@jmemusic]

I saw the specs of that fan and it is way too loud: 65 db. So, you will save your lungs, but damage your ears; unless you reduce the noise somehow. I find out that most commercial fume extractors use fans with 60 m3/h or 35 cfm. They are still loud: 43 db, but it is reasonable.

[@Jonnynot1plate]

Got an extractor, mask, glasses and even gloves. May be overkill but rather try to be safe. Maybe a helmet would be too much.

[@eminkilinc7806]

bu izleyen türk arkdaşlarıma sesleniyorum bu sitemle ortadaki fanlar ile arkadaki fanlar boğuluyor ve performans sağlamıyor haberiniz olsun onun yerine her bir fan arasına 1cm kadar boşluk koyarsanız acayip bir performans alabilirsiniz teşekkürler :D

[@ElectronFunCom]

I don't speak Turkish, sorry.

[@eminkilinc7806]

You can use google translation thanks :D

[@ElectronFunCom]

Unfortunately it's very inaccurate at times - I'm not able to fully understand your comment, sorry.

[@eminkilinc7806]

It does not matter, my friend, thank you video useful

[@ElectronFunCom]

Thank you very much :)

[@robertvanbenthem2300]

How about the noise? Surely the sound of 4 fans must drive you nuts...

[@ElectronFunCom]

I cleaned and lubricated all 4 fans and they are very quiet. Some time ago I built another fume extractor with one big fan powered from the mains - it was much, much more noisy.

[@seckinseckin3919]

you can use Electric Foot Switch Pedal

[@Mtaalas]

One would do better with active carbon filter, but i think that's adequate too. :)

[@ElectronFunCom]

I know a carbon filter would be better :)

[@markpolyakov1512]

lol @ motherboard foam. Use a carbon filter at least, guys

[@jmemusic]

I was wondering this too. Most fume extractors I've seen use the carbon filter.

[@computergeek4445]

you only need 1 fan and you should hook it up to a permanent power supply like a 8 AA holder

[@ElectronFunCom]

Have you ever tried 2 or 3 fans instead of one? I have and checked this empirically that 2 or 3 fans suck fumes much more effectively than just one. My power source is just temporary, I think 8 AA batteries is not a very practical solution. I'll probably use a standard 12V wall wart.

[@seckinseckin3919]

@@ElectronFunCom i also think using more fans makes stronger but i guess sticking together all fans without distance neutralise effect and make weaker them. im thinkin of putting all fans in a pipe and leaving one centimeter between each fans makes more effective.

[@ElectronFunCom]

@@seckinseckin3919 As I replied earlier, much depends on the shape of your fan blades. However, I'm guessing that leaving spaces between fans may rather decrease the air pressure. You could do a simple test with your fans and pieces of paper to check if you are right.

[@seckinseckin3919]

@@ElectronFunCom if they are inside a pipe then it is okay i think .. i will check it

[@percaine]

People are harsh man....I agree that the filter material you used isn't exactly the best and probably won't filter much if anything but I can voice my opinion without being a jerk...When people comment like that on my videos I say give me the link to your video where you make something better...They almost alway never do.

[@ElectronFunCom]

This is so true! I learned that you need to have a thick skin, if you publish videos on KZbin. I used to ask some of these "smart" critics if they could show me anything they did. In most cases the discussion was over :) Fortunately, most feedback I get is positive, so I don't worry too much when someone is trying to ruin my day. I have just subscribed to your channel - it's a good one :)

[@percaine]

Thanks for the sub I appreciate it..I'm not the best content maker on youtube but I try..I meant to subscribe to your channel but I forgot..just did though..Have a good one.

[@ElectronFunCom]

Thank you, have a good one too :)

[@NoxmilesDe]

you need active coal

[@ElectronFunCom]

Now I know, so many people told me about the filter. I hope to redo this project once more, but this time the way it should be done.

[@eddcordero4327]

Thanks for the video. This type of unit is fine for hobby types - which is what I am - don't pay too much attention to "professional opinions". I had an idea maybe you could use cooker hood filter, its cheap, easy to cut and it has carbon too.

[@ElectronFunCom]

The cooker hood filter should work just fine for this application. Thanks for the tip :)

[@lezbriddon]

i started soldering at age 11, now 51, 40 years on no ill effects.... your mileage may vary. not a dr.

[@ElectronFunCom]

Good for you :)

[@Vilmeid]

Why you use 4 fans instead of 1? This won't give you any more power!

[@ElectronFunCom]

+Vilmeid Good question :) I did a few experiments and it turned out that multiple fans in series create a higher static pressure than just one. See the following figure: www.nmbtc.com/fans/engineering/multiple-fan-use. However my most recent experiments show that certain conditions need to be fulfilled for this theory to work. I might show some of my experiments in part 3.

[@Vilmeid]

I use one of the enclosure cooling fans instead :D www.dropbox.com/s/qyn6lrfmy7ktb58/20151215_190052.jpg?dl=0 www.dropbox.com/s/0k6jzoyod4baaz7/20151215_190030.jpg?dl=0

[@ElectronFunCom]

+Vilmeid Cool, is that some kind of your project, or did you buy the whole thing?

[@Vilmeid]

My dad brought it to me. I just put Carbonfilter in it. But i'll build a small cabinet for it with on/off switch, and a dimmer. Because it runs on 230V~. Quite loud but now it runs on 110V~ at 40 dB and sucks like a vacuum cleaner.:)

[@ElectronFunCom]

+Vilmeid Look out for your electronics parts, they may get sucked in ;)

[@thou_shalt_kill1355]

stacking fan like that dont work it will make your fan run slow.

[@ElectronFunCom]

It doesn't change the speed, it increases static pressure.

[@thou_shalt_kill1355]

+ElectronFun.com no the 1st fan is trying to rotate the other fan in reserve that why it will run slower and same to other fan. try it power the 1st fan and dont power the 3 fan and 1st will rotate the second fan in reverse. it will be better if you only use one fan.

[@ElectronFunCom]

Have you seen charts like this one: www.nmbtc.com/fans/engineering/multiple-fan-use/? Pay attention to fans in series. Nonetheless I will redesign this project - I would also like to include an experiment with multiple fans in part 3.

[@thou_shalt_kill1355]

That chart work if you have fan that rotate in diff direction. If the fan rotate in same direction if wont work.

[@ElectronFunCom]

I can't agree with you. Have you ever tried this yourself?

[@Newb1eYou_]

weird voice?

[@daveblane6442]

absurd. 4 fans?? lol

[@ElectronFunCom]

It increases performance.

[@paddajunior744]

Your videos are so useful and you really explain it so well that any person with little or no experience can understand and follow. Thank you so much.

[@ElectronFunCom]

Thank you very much for your kind words.