如何制作DIY空气净化器

根据我对空气净化器原理的了解,要减少颗粒物污染的关键在于HEPA 滤网。虽然我只在中国住一年,我真不舍得花8000民币买一台超贵的净化器,我觉得我可以自己制作属于自己的空气净化器。

 

我在这里给出净化器有效的数据(1, 2, 3, 4),这篇是教你如何制作DIY空气净化器。

 

#1 购买一台风扇

非常重要的一点,风扇的前面最好有一个平面,这样可以方便把HEPA网绑上去。这是我花58元购买的风扇。

#2 购买HEPA滤网。

这是我购买的第一个HEPA 滤网,价格108元人民币。

 

 

我测试所有我能找到生厂商的HEPA网,希望可以找到一个既能捕捉更多颗粒,同时风阻更小-也就是可以通过更多空气的HEPA。我用激光测试仪做了测试,结果表明这款HEPA 的效果非常好。因为我一次性批量采购,所以这 个HEPA 比我初次买的HEPA 要便宜,放在我的淘宝店(还有Smart Air 官网)供有需要的人购买。

 

#3 卸掉风扇前面突出的部分

把风扇的前网拆掉,前网是通过一个卡片固定的,如果有钳子会更容易操作。

把风速开关调到高档,然后把开关旋钮卸下。旋钮突出会使HEPA不能很好和风扇贴和。没了旋钮,可以通过插拔插头来开关风扇。

 

 

#4 用绑带将HEPA 滤网系上,你就成功制作了你自己的DIY空气净化器了!

用固定带把HEPA绑在风扇的前面,专属于你的空气净化器就完成了!

风扇中间的铁棍可能会稍微插入滤网。我的测试结果表面这个问题并不会影响HEPA 的效率,为了安全你也可以把它锯掉。当然,要是能够找到没有铁棍的风扇是最好,也是我正在销售的(淘宝网)。

 

 

这DIY净化器价值166人民币(27美元)。你的下一个问题一定是:DIY空气净化器和那些昂贵的8000人民币的空气净化器比较,效果如何呢?点击这里观看测试视频用更给力的风扇效果会更好吗和其他品牌比较起来效果如何

 

你也可能会想:滤网不是应该在风扇的背面吗?其实,我的直觉一直是‘放前后并不会有差别’,但测试的结果竟出乎我预料。

 

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Muhammad Khizar

Hi, this maybe a silly question. I just made a DIY air purifier similar to instructions here. How much of air flow should we be able to feel at the front of the HEPA filter ? Little or none at all as I am getting almost none.

Hey Muhammad! This is a very common question for DIY air purifiers. Even if you can’t feel a l… Read more »

davis.c.fay

Hello! I had a similar problem to Muhammad’s – little to no air flow out of the front of the filter and significant flow out of the back of the fan (even after taping up all of the side vents in this particular desk fan.

What do you recommend to correct for this? I’m in the USA, so I don’t believe I have affordable access to the same fan listed in the instructions in this blog post.

If you’re in the USA, then you’re in luck! I suggest you get yourself a box fan and a large furnace filter. These fans are extremely powerful and very affordable in the US. They should be a great option for you!

Vivi

Hi Thomas,I want to buy your HEPA Filter through Taobao website. However i have a big question : the last product is an air purifier machine or a fan having air purifier function. Is this product still a fan? Does it make cool anymore?

Hey Vivi, Tom’s out doing nerdy stuff so I’ll reply on his behalf! With the HEPA filter attached, the airflow is much less than a regular fan, so these DIY purifiers don’t have a strong cooling effect. However since the HEPA filter is detachable from your fan, you should be able to remove the HEPA filter at any time to turn the DIY air purifier back into a fan.

Vivi

Thank for your reply. Finally the fan is not a fan anymore, right? The fan becomes an air purifier?

Mona

Hi, I wanted to back/order the Squair on Kickstarter but am I one day too late? The photo says it ends on July 5th, which is today, but I can’t seem to find a link to order… thanks!

Hey Mona, you just missed the Kickstarter, unfortunately! The campaign ended midday on the 5th July! If you want to be the first to know about pre-orders, sign up to our exclusive mailing list here

Shravan

Finally the fan+filter is to be fitted as a fan (pumping air towards you) or as an exhaust fan (pumping air outside) ?

dguevara

Is possible to have those ones in México City ?

Hi Daneil! We can ship to México City, but shipping costs can be pretty steep. What we suggest is you pick up a HEPA filter from our store, and source a local fan in México City, to save on shipping! More info: https://smartairfilters.com/cn/en/shop/worldwide-orders/

dguevara

thanks a lot, I will do it. we are also interested in becoming a tester and create data for México and all LatAm countries. we are an IOT network that wants to help solving air quality problems in our regions. this is our website wndgroup.io , let us know how we can collaborate.