I have really come to love and appreciate the Hamilton Beach True Air Order Eliminator with Night Light. The main reason is because I am a smoker an my husband is not. I often smoke on our deck which is enclosed and has the habit of enclosing scents in. The Odor Eliminating Night Light doesn't work entirely for cigarette smoke. It definitely makes a major impact that is very noticeable when it comes to cigarette smoke. In my opinion though, it does not have the ability to eliminate it completely. It definitely has it's benefits in other areas though. For instance, I have one in my bathroom and it works amazingly well. It doesn't have an extreme or overwhelming scent but, gives off enough scent to notice an airy difference. The overall odor eliminating air filtration is what is most effective and innovative. I love the Night Light feature because it eliminates 2 issues at once. It has a built in scent cartridge and there are refill cartridges that are available to suit individual needs - like for pet odors or cigarette smoke. Mine has lasted quite some time and I love that I can switch up scents when I want a change every once in a while. It kind of makes me feel like I've got something new with every scent I switch between. Ease of Maintenance Simply purchase refill cartridges in your preferred scent.