Is it safe to move my IRN back into room?

I've been keeping my IRN in a different room for a few months now
because I have been worried about exposing him to some varnish in
my room.

Two doors have been varnished and despite months having passed
the surface still feels mildly sticky. Could this still pose a danger to him?
or will it be safe to put him back in his old room now given how much
time has passed?

I'm aware that some varnish may never dry full if not applied correctly
but I'm not sure if this is even the case or how this would effect birds
in it's vicinity.

Sorry if I sound like a broken record by asking a lot of similar questions
but his safety is of the utmost importance to me and at the same time
I want to resume the same level of bonding we had before.