On 24/07/16 15:38, Stephen Wolstenholme wrote:
On Sun, 24 Jul 2016 13:51:35 +0100, Tom Gardner
wrote:

I don't see how a plant can act as a useful dehumidifier
in normal UK conditions. If they could, then where would
the water go and what would be the physics/chemistry
mechanism?

I think succulents absorb some moisture in the air by osmosis. Get
enough of them and they will dehumidify a room.

Obviously /succulents/ can't absorb through the foliage,
so the only way they can ingest water is through
their roots.

Any de-humidification would have to be via the roots
and soil in the pot, which seems (at best) a very
inefficient way dehumidifying the air.