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Agree! However article is comparing to a $100 option and he spent about $60 on DIY supplies. The price differential is small enough that nobody should DIY. The

Agree! However article is comparing to a $100 option and he spent about $60 on DIY supplies. The price differential is small enough that nobody should DIY. The convenience of having an auto-sensing device that turns on and off when based on changes to air quality is well worth the extra. As is the ultra low noise operation and added aesthetics.

RangerScience 3y ago
> nobody should DIY > nobody should DIY for price reasons FTFY. Lots of reasons to DIY other than price :)
neogodless 3y ago
He's comparing a $100 option that does not have an auto-sensing device to a $54 option (that also doesn't have a device.) This is pointed out by the author: > Some (more expensive) commercial purifiers have air quality sensors built in and automatically turn on only when needed. So in this case, you still have to manage fan speed yourself. Overall the bigger picture would include cost of filters over time, as well as electricity (which may be in favor of the commercial unit.) And finally, you have to consider the dollar value of aesthetics!
- conductr 3y ago
  IDK if that's true, I have one that I paid about $100 for and has sensing. It's quite nice and I basically never know when it's on it's so quiet. It also came with a reusable/washable filter, so I've never had to replace it after about 3 years of use now. Any ways, I DIY a lot of stuff, but there's not enough interest in this one unless you're just a glutton for frugality or find some interest in this particular project. My point was that for most people this would be a negative time value of money for inferior outcome; which I think are why most people DIY things... so they can afford better or learn something. (There is no learning when all you're doing is strapping a filter to a box fan.)
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turtlebits 3y ago
The DIY option should have been closer to $30 if they used a 20x20x1 filter (~$10), which fits perfectly on a box fan. Also, I have yet to find an $100 air purifier that has a high enough CADR to filter a large living room.
subpixel 3y ago
I built a big DIY one and then immediately bought a non-DIY one for my bedroom. The filters are going to cost a lot more, but it looks a lot nicer and I don't have to think about turning in on and off - it's runs on auto.

RangerScience 3y ago

> nobody should DIY > nobody should DIY for price reasons FTFY. Lots of reasons to DIY other than price :)

neogodless 3y ago

He's comparing a $100 option that does not have an auto-sensing device to a $54 option (that also doesn't have a device.) This is pointed out by the author: > Some (more expensive) commercial purifiers have air quality sensors built in and automatically turn on only when needed. So in this case, you still have to manage fan speed yourself. Overall the bigger picture would include cost of filters over time, as well as electricity (which may be in favor of the commercial unit.) And finally, you have to consider the dollar value of aesthetics!

conductr 3y ago
IDK if that's true, I have one that I paid about $100 for and has sensing. It's quite nice and I basically never know when it's on it's so quiet. It also came with a reusable/washable filter, so I've never had to replace it after about 3 years of use now. Any ways, I DIY a lot of stuff, but there's not enough interest in this one unless you're just a glutton for frugality or find some interest in this particular project. My point was that for most people this would be a negative time value of money for inferior outcome; which I think are why most people DIY things... so they can afford better or learn something. (There is no learning when all you're doing is strapping a filter to a box fan.)

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turtlebits 3y ago

The DIY option should have been closer to $30 if they used a 20x20x1 filter (~$10), which fits perfectly on a box fan. Also, I have yet to find an $100 air purifier that has a high enough CADR to filter a large living room.

subpixel 3y ago

I built a big DIY one and then immediately bought a non-DIY one for my bedroom. The filters are going to cost a lot more, but it looks a lot nicer and I don't have to think about turning in on and off - it's runs on auto.