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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: >
by 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 agoIDK 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.)