FREE water from AIR device: BUSTED

What Hacker News said

Cites RaiausderDose · 2022-10 · on “White House is pushing ahead research to cool Earth by reflecting back sunlight”

These dehumidifiers produce half a liter a day and need around 72 watt which is maybe 1€ per liter drinking water for my area The tech is cool but not really new or a solution to all water problems, the energy cost is relatively high. More about it here: [this video]

Critical aaron695 · 2019-09 · on “Crystalline nets harvest water from desert air, turn CO2 into liquid fuel”

> Crystalline nets harvest water from desert air, turn carbon dioxide into liquid fuel It's like we are stacking crazy, onto crazy, onto crazy. You can't get water from air in deserts or places needing water of any practical, non military use - Here's a start - [this video] We don't need to turn CO2 into fuel, just make fuel/energy without fossil fuels that's also used, and you're solving global warming in a amazing way. It's worth trillions, so it's always AMAZING to see some school kid or amateur scientist or researcher who just needs a little more research beat the multi nationals. It's a shame the multi nationals are to dumb to not hire school kids and these smart ideas people. Just shitty pe

Critical imglorp · 2021-08 · on “Spanish engineers extract drinking water from thin air”

Nope, there's no magic or free lunch. It depends heavily on local conditions which might not always be suitable. Thunderf00t has debunked a bunch of other enterprises doing water from the air: [LINK] [LINK] [this video] [LINK] etc

Critical Confiks · 2021-08 · on “Spanish engineers extract drinking water from thin air”

Thanks for the links! Mostly scams and very bad science journalism indeed. However, he completely misses the mark in his video about the Science paper "Water harvesting from air with metal-organic frameworks powered by natural sunlight" [1]. He declares it a hoax, but ignores pretty much everything from the paper. Surprisingly, far down the comment section, there is a comment explaining that [2]. [1] [LINK] [2] [this video]

Critical torginus · 2022-03 · on “Google open sources solar atmospheric water generator”

None. Or alternatively, gathering Reddit/HN karma or channeling NGO funds into overpriced useless science projects instead of helping people. Thunderf00t has made a ton of videos about devices like this, for example: [this video] The TLDW version is these devices are fancy dehumidifiers. They need a ton of power, and lots of air humidity to be practical, which are exactly not the conditions these devices are advertised to operate in. And even then, the water they produce is dirty, so it needs to be purified and treated to be actually drinkable. Even if we solve all these challenges, it turns out that doing something dumb and low tech, like transporting drinking water on trucks is actually a lot m

Critical jojobas · 2026-06 · on “This Jacket Pulls Drinking Water from Thin Air”

You can wear silica gel since about 1918 - only needs some heat to get the water out and cold to condense it. Then again, why would you want to wear your dehumidifier (ok ok water harvester)? Is it for excursions into damp areas, so that you can then return to your dry home to extract water? Then, I believe everything in this video still applies. [this video]

Critical jojobas · 2026-06 · on “This Jacket Pulls Drinking Water from Thin Air”

It is a dessicant dehumidifier, useless for the same reason as this MIT/Berkley thing from 9 years ago. [this video]