A mini humidifier. The air in my office and bedroom is so dry. It’s made a huge difference for me with eyes, skin, hair and migraines! This is the one I bought: https://www.amazon.com/dp/B07Z64CSTJ/ref=cm_sw_r_cp_api_i_j-x0EbB1T7KXQ

I use this one for the three I have in a huddle on my desk.

https://smile.amazon.com/dp/B07Z64CSTJ/ref=cm_sw_r_other_apa_i_HqikEbZQ823XX

Sorry, don't know how to fancy link. But that one is serving me well so far. I turn it to "intermittent" and only worry about it once a day.