Incense in a Rental

Hi, I have recently moved in to a rental and since I have moved in I have been smelling a smokey incense smell in my room. I have had the windows open and ran an air purifier. I have also shampooed the carpet and that lessened the smell but it is still persisting. I am concerned that the previous tenant either burned incense a lot or was burning it to cover the smell of them smoking. Is this a health risk? I have just signed the tenancy so is there anything I can do?