These are called dehumidifiers and you should not drink the water that comes out of them.
The condensed water is pure, yes. But dehumidifiers almost instantly become a breeding ground for all kinds of nasty shit. Nasty shit that is now in your ‘pure’ water.
Edit: It's the same problem as the WaterSeer which is also a passive dehumidifier. This same idea comes up several times a year, yet you don't see them deployed in quantity anywhere. They simply don't work well. (The WaterSeer actually seems like a better design than what is in OP's article.)