I am afraid that it would very difficult to make such a large public space smell-free. Perhaps you need to find the right space for you to work which takes you away from those areas you find more aromatic than others.
You will be pleased that we have just created a website showing how various types of library space have been zoned for use. We will be developing this site further with links to floor plans, etc. but wanted to get something out quickly to help students during this exam period. Check out the new site @ http://library.mcmaster.ca/study-space. We hope you will now be able to find exactly the type of study space you are looking for, in each of our libraries!
Answered by: Anne Pottier (Associate University Librarian, Library Services)