somoene finally built a solid state dehumidifier based filament housing

[coppercone2]

we have been talking about it for god knows how long but no one has the balls to buy the membrane and actually mount it to a box!!!, until this guy did. must have been like 6 eevblog humidity congresses held up to this point

[DavidAlfa]

The balls? Nope, maybe you meant the money.  That thing costs about $150.

[thm_w]

He showed the cheap ones are $10-20, but presumably it would take months for it to dehumidify a wet roll of filament.
https://www.micro-dehumidifier.com/products/price-list-rosahl-dehumidifiers/

Seems there is just this one company making them, no cheaper alternatives?

[mawyatt]

Interesting technology, but leaving excessive O2 around in a closed container will likely cause issues with some materials!!

Best,

[all_repair]

leaving excessive O2 around in a closed container will likely cause issues with some materials!!

Very true, I have many drawers of parts to protect from corrosion.  Reduce moisture but introduce more O2 shall cause more harm than good.

[Marco]

I wonder if a box of silica gel, a heater and some a solenoid controlled vents wouldn't be faster.

[thm_w]

I wonder if a box of silica gel, a heater and some a solenoid controlled vents wouldn't be faster.

Heater is obviously faster, as was noted in the video, but energy costs are high right now for some countries, so they are avoiding that solution.
I'm sure a 3W heater would not work as well as this device.

[NiHaoMike]

Interesting technology, but leaving excessive O2 around in a closed container will likely cause issues with some materials!!

Then put something inside to use up the oxygen without generating moisture? Carbon comes to mind as something that's cheap and readily oxidizes, the tricky part is figuring out how to do that in a well controlled manner, without generating hazardous amounts of CO.

Heater is obviously faster, as was noted in the video, but energy costs are high right now for some countries, so they are avoiding that solution.
I'm sure a 3W heater would not work as well as this device.

How about a simple solar thermal collector?