Yeah there is a window near just outside of the closet I should imagine with the window carbon filter and the air purifier it should keep things on the low in terms of odour the air purifier I was looking at has two filters with a third filter which is a carbon filter in the middleNot a problem. I grew for many years with my inline and filter exhausting into my tent room. When the air got a little musty, the air purifier took care of it. Is there a window close by, cracked for fresh air?