I feel the pain of "too dry" indoor air. I had BEAUTIFUL African Violets & Orchids. Last Spring we got a new heat pump with a super dehumidifier on it. And we extended the venting onto the new sun porch. Now we have really low humidity in the summer & 1 by 1 most of my beautiful houseplants have shriveled & died.
Today I just transplanted my last few AV to plastic pots with holes on the bottom & will switch to top watering. The Orchids are all living in the screen house & some are still alive. Even my Christmas Cactus aren't happy with the LOW humidity.