Paper Clay Air Humidifier

Post by jcims » Mon, Feb 24, 2020, 2:26 PM UTC

TeMPOraL wrote: post #36

mfkp wrote: post #34

Earlier quoted context omitted.

Yes, that's the minerals in the water. Using distilled water prevents this.

I discovered this when doing a post-assembly indoor test of a Luftdaten air quality sensor I built[0]. I kept it running for few hours and then looked at the data, and saw some ridiculously high levels of PM2.5 and PM5 in the evening. I've decided to investigate it. Over the next two days, I figured out that the increased levels happen at times when our air humidifier is running, which led me to discover that those u…

Post by mrfusion » Mon, Feb 24, 2020, 3:17 PM UTC

aliswe wrote: post #53

mrfusion wrote: post #8

Here’s an idea I had for a humidifier. It simply tumbles thousands of tiny beads through tumbler with water at the bottom. Since the sheer number of small beads creates a huge surface area you’d get a bunch of evaporation. Cool right? Feel free to use this idea as prior art.

Yes but energy intensive.

Post by bitxbitxbitcoin » Mon, Feb 24, 2020, 5:03 PM UTC

oska wrote: post #57

mfkp wrote: post #38

Earlier quoted context omitted.

I've encountered the same issue (high plastic bottle waste along with high cost). Short of boiling your own water outdoors to avoid polluting the indoor air, it's challenging to find a source for bulk distilled water.

Rain is essentially distilled water (evaporation from terrestrial water bodies and then condensation in the atmosphere). It picks up some contaminants in the atmosphere and some dissolved gases when it condenses but it's going to be mostly free of minerals (i.e. not be hard). So collecting rain water is one source of bulk 'distilled water'.

Post by devtul » Mon, Feb 24, 2020, 6:01 PM UTC

jcims wrote: post #27

exclusiv wrote: post #23

Earlier quoted context omitted.

I have a rather small Honeywell cool mist that works well. I use it in our bedrooms and have taken the humidity up 20% easily. This is in the mountains where it's drier than the desert in the winter.

They ‘cheat’ a little by lofting liquid water which then evaporates. We have a water softener and the cool mist humidifier left a smoke-like particulate floating in the air (i think it was either salt from the softener or minerals from the water)

Post by jcims » Mon, Feb 24, 2020, 6:22 PM UTC

cameldrv wrote: post #26

JohnJamesRambo wrote: post #19

Earlier quoted context omitted.

When I finally got a hygrometer I was amazed at how useless the powered one gallon air humidifiers are. They often can’t raise the humidity percent a single point with the hygrometer right by it in my rooms. If you want to really humidify a room it takes a big industrial sized unit. They had them in the rooms in our Colorado Airbnb cabin and they were totally necessary in the dry mountain air if you didn’t want to wa…

When I was a kid in the eighties we had these huge “console” humidifiers that held maybe 15 gallons and had a rotating belt and a big fan. Seems like they stopped making these in the nineties in favor of the useless tiny things.