Humidifier help!

Hayley • 21, mommy to Milo 👶🏻 💙 mom to Eloise 🐶 TTC Baby #2 🤰🏻

I got a humidifier to use in my room because my son (3 months) has been crazy congested at night, and I’m pretty sure it’s from our fireplace heater. I got the stuff it said to buy with it and reading it it says not to use with kids under 2??

Can I still use it? Has anyone used it for their babies?