How do we handle a smoking caregiver?

I had a caregiver on Sunday from an expensive agency. They are supposed to be better because their standards in hiring are higher and their background checks more extensive. The caregiver that was sent is a very nice, educated lady with a Masters in Counseling. I thought that would be great since it would help Mom emotionally to talk with someone. Mom is depressed and frustrated about her condition. Here are my two problems: The caregiver was honest when asked if she was comfortable transferring my mother into the shower, recliner etc. She said she didn't know. She has the training but not much practice. She asked if I could be there with her to get Mom out of bed. I agreed since she was new with Mom and every patient is different. The other problem is that she smokes. After a while, my husband and I went grocery shopping. When we got back my husband noticed she was coming in from the other the porch having finished smoking. The cigarette smoke smell was very strong. We think she left the sliding glass door open to keep on eye on Mom. After she left we could still smell it. My husband has a real problem with this even though we both liked her. I never told the agency that I wanted non-smokers only so I will have to address this. Any comments?