A cute and clever little puzzle platformer. I could see this having potential as a metroidvania!
The mechanics functioned well and made for some interesting puzzles, albeit a bit straightforward. I'd love to see a full version create some more complex scenarios. I agree with other commenters that maybe having a wheel to swap between abilities and binding it to a single key might work better.
I did find a bug where placing a cauldron directly under another air source will cause the upper one to not function. I had to move the cauldron aside a bit.
Overal a fun and well presented experience!