151–160 of 163 posts
Very cool. Now what can we do about the eyesore factor? Does this affect the fans cooling performance? The air blows more straight down than diffuse I am assuming due to the shroud?
Wood for the frame, metal grid sheet to cover the filters & still allow good airflow
I mean if it works, but it's also the ugliest thing I've seen. It's up there with those plastic covers for furniture. A standalone air purifier in the corner would be less noticeable and ikea even makes a table with a hidden one: https://www.ikea.com/us/en/p/starkvind-table-with-air-purifi... Aesthetics matter. Now if you could somehow make the blades the filters, that would be badass.
I for one would happily proclaim “my shitty looking box fan contraption that costs $100 outperforms your $700 dyson by a decent margin”
Why lick the boots of brand centric corporations. Maybe you’re one of those “lifestyle brand” people… I think that’s code for no originality or personality.
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If we're looking for a finished product, we're leaving a tool on the shelf -- filters aren't the only option. Pipe the air through a duct flooded with deadly UV-C and sterilize the air instead of just filtering it.
This also creates ozone though, which is detrimental to human health. Review here: https://link.springer.com/article/10.1007/s11356-017-9239-3
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Thanks for sharing some background on Molekule, I did not know about this.
That said though, the Molekule team themselves have said that their device is not optimized for filtering particulate matter, but rather for denaturing mold, viruses, and bacteria. See: https://www.reddit.com/r/molekule/comments/6u7d5y/putting_mo... This is reflected as well in the testing on Molekule's own website: https://molekule.cdn.prismic.io/molekule/4ec92005-d806-4991-... And, I will say that they have numerou…
I mean if it works, but it's also the ugliest thing I've seen. It's up there with those plastic covers for furniture. A standalone air purifier in the corner would be less noticeable and ikea even makes a table with a hidden one: https://www.ikea.com/us/en/p/starkvind-table-with-air-purifi... Aesthetics matter. Now if you could somehow make the blades the filters, that would be badass.
Aesthetics only matter for the extremely insecure. I for one would happily proclaim “my shitty looking box fan contraption that costs $100 outperforms your $700 dyson by a decent margin” Why lick the boots of brand centric corporations. Maybe you’re one of those “lifestyle brand” people… I think that’s code for no originality or personality.
If you're ok with this contraption taped to your ceiling, while having guests over, more power to you. This of course would be totally fine if you lived in a state dealing with wild fire smoke I will say.
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That’s a great idea. What kind of filter do you use?
Standard furnace filters, pick the level of filtration you desire/can afford.
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That’s a great idea. What kind of filter do you use?
Is that enough for allergens, smoke, and pet dander? I don't care about virus filtration (which is not going to happen anyway, if it's something I'm making out of cardboard and duct-tape)
If you have a whole-home furnace you can often make it run the fan even if cool/heat is off - and install a high power filter and change it regularly and it’ll filter the air reasonably well. The ecobee has a “minimum fan time per hour” setting - it can also help to balance the air temperature.
My dad worked in AC his whole life. Do not put a constrictive filter on your ac. He even recommends the cheap ugly ones as they are the least restrictive. The AC is not meant to filter air. The only reason it has filters is to keep large particles out of the evaporator coils.
The one thing it can do is cause your equipment to run longer (because of the lower efficiency) thus wearing things out quicker. But, most HVAC systems are not nearly as "fine tuned" to the size of your house as many might think. Most traditional HVAC systems basically have 2-3 speed settings for the fan depending on home size. There is a lot of play between those rough settings where a bit more filtration is not going to put it out of recommended ranges.
I have a very high Merv rating filter on mine plus a charcoal filter, but I change it out every 3 months or so.
Compared to the standard, cheap, barely there filters, the run time and energy usage difference is not enough to notice.
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I have a degree in electrical engineering, thank you for telling me to do my research, I spent four years doing that. Sure, some motors have characteristics that can be tweaked to run at different work loads either with PWM, or allowing them to pull more amps to drive higher loads. Hell, you can even overvolt them and make them actually work harder. That's not how HVACs work though. Have you ever opened one up and di…
Even a motor without a fancy control system will consume more power under load. See: https://en.m.wikipedia.org/wiki/Counter-electromotive_force