>though mine just doesn't need cleaning very often. Do you have carpet where you use it and do you have pets? From fairly limited observation on computer fans

>though mine just doesn't need cleaning very often. Do you have carpet where you use it and do you have pets? From fairly limited observation on computer fans, those two factors make a huge difference in how messy fans will get. Apartment with hardwood floors, air duster once a year is fine. Apartment with carpet, monthly minimum still leaves the fans gunked up.