Indoor growing: humidifier vs humidity trays?

[Merlyn]

I use both and the trays DO increase humidity but only locally around the plants, you won't see a rise in the room humidity. I use the trays now mainly to hold water for the ones that like wet feet = ALL my Bulbs. and my Ctsms. when in their growing cycle suck it up quicker than I can replace it !!!

[Wjs2nd]

I use both trays and a humidifier.

I use the trays to collect the extra water from waters my orchids. I keep hydrotron in the trays to kee the roots out of standing water.

I use the humidifier to really add humid to the whole area. I have a fan the oscillates over everything very lightly, just making some air movement.