this post was submitted on 04 Mar 2024
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What are your thoughts about tech capable of extracting water from humidity? (www.youtube.com)
submitted 8 months ago by rainpizza@lemmygrad.ml to c/technology@lemmygrad.ml
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Is this type of tech a hoax or it is really thing that was not considered enough for the upcoming water crisis around the world?

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[–] Comprehensive49@lemmygrad.ml 10 points 8 months ago* (last edited 8 months ago) (2 children)

This tech is just a reskinned dehumidifier. The scientist Youtuber Thunderf00t has made a number of videos debunking these types of claims. Their issues can be summed up as the following:

  • they extract very little water while using a shitton of energy. The amount of energy required to condense water from gas into liquid equals the amount of energy required to boil said water, which is a lot. This is dictated by the laws of physics.
  • they work best in humid conditions. These conditions only exist in places where you would ALREADY be able to find water, or when it is right about to rain ( as the natural humidity condenses to form rain clouds), in which case you can just catch and drink that.
  • the water they produce is not clean. Do you want to drink the moldy water out of your dehumidifier? Model and bacteria grow on the cold, wet metal fins where the water condenses.
[–] Comprehensive49@lemmygrad.ml 6 points 8 months ago

Next, let me sum up how to pull off this scam. First, buy a couple of commercial dehumidifiers. Next, put the equipment inside them into new, cool-looking equipment boxes. Third, call news stations saying you've solved water forever.

[–] rainpizza@lemmygrad.ml 5 points 8 months ago

Interesting and thanks for sharing this! I will check Thunderf00t's videos then.