Advice for winterizing this grow setup

[Dimples]

You’re welcome. My first humidifier was a penguin shaped one by Crane, from their children’s line. The absolute no-frills unit, just one on/off dial for setting the mist output, but it lasted 12 years and it was less than $40 at the time. I over-humidified my apartment a few times in winter before I got the hang of it, but it worked great.