A 1000w step down transformer will cost more than a new humidifier.
I have been watching it but i’m unsure if the humidity components will fail.
I’ve been looking at Levoit humidifiers https://www.amazon.com/dp/B095KGXPW5/ref=cm_sw_r_cp_api_glt_i_DH81WX5AVFN9VZZRAT6K?_encoding=UTF8&psc=1
I just don’t know if it could provide enough moisture. I think it tops out at 80-85% relative humidity. It would be really nice to have a smart device in the tent for monitoring and adjustment.
I have this one and I love it. It's a good size for one large room, but would need something larger or a second unit for a whole floor.