Behavior change

[California]

Hi! I’ve had my alexandrine parrot for 4 months now . Lately I took him on a 2-week trip in order to not leave him alone . The last few days he’s less active and his beak changed to a light pink from a vivid red color.
the house I’m staying in belonged to a smoker is that the problem?
I don’t have a avian vet near me
Do you think anything is wrong?

 

[expressmailtome]

Do you have a picture of his beak? I have never heard of lung issues causing a beak to change colors. Separately, yes, the residual smoke left in the house can harm your bird.