i remember these kinda discussions from a few years ago, when waterseer had a similar idea.
how well these devices work is strongly related to how humid the air is.
and the places where these kind of devices would actually be useful (like deserts) have very low humidity,
to the point were there is almost no water in the air to be harvested.
atmospheric water harvesting has only been somewhat feasible in environments that usually have better methods to get water,
and even there they are ineficcient to the point where people consider it a scam
i remember these kinda discussions from a few years ago, when waterseer had a similar idea.
how well these devices work is strongly related to how humid the air is.
and the places where these kind of devices would actually be useful (like deserts) have very low humidity,
to the point were there is almost no water in the air to be harvested.
atmospheric water harvesting has only been somewhat feasible in environments that usually have better methods to get water,
and even there they are ineficcient to the point where people consider it a scam