Tri-Flow. It's a lightweight oil + teflon, and doesn't evaporate like WD-40. It's marketed primarily to the cycling community, but I tend to use it where most people would use WD-40 (fixing squeaky hinges, loosening bolts, etc.)
For example[1]
> the main route of PFAS exposure for most Americans:
> Teflon and other brands of nonstick cookware are still produced with new PFAS that may be no safer.
[1] https://www.ewg.org/pfaschemicals/what-are-forever-chemicals...
PFAS are an ecological disaster; Teflon itself is not a concern.
Using teflon cookware around a pet parrot is a well-known way to kill the pet.
Teflon frying pans are supposed to be safe if you never let them overheat, but in practice they're not safe if you have birds in the house.
PTFE is toxic for humans too, but human lungs are more robust than bird lungs.
[1]https://www.paintdocs.com/docs/webPDF.jsp?SITEID=TRIFLOW&pro...