An Air Purifier And A Bird Table

We've started using an air purifier. It makes the whole house smell faintly of olbas oil 

Yesterday Ruth came to lunch. I made a Chinesey pork dish I'd road-tested earlier in the week- and we exchanged the gifts the weather had prevented us from exchanging at Christmas. She has given us a sturdy new bird table with a pitched roof.  As soon as entered our dusty front room she started coughing, but I switched the air purifier on and she stopped.

There's a pigeon helping itself from the new bird table. Other birds are hanging about.