Recommendation on Whole house hvac oil diffuser

[Redart59]

We love the smell of the hotel lobbies at Disney and other nice hotels.

I have done some research and found that they use a company called scent air.
The company only sells the unit that hooks up to the hvac to businesses. They have a small home unit that I have no interest in.

I found a small company out of Utah (scented vents) that seems pretty reputable but wanted to see if anyone here uses one that they love.

My biggest concern is that the fragrance oils are safe for us and our animals to breathe in on a daily basis. I have been reading a lot about how dangerous some of the cheap plug in brands can be.

Thanks!!