This is a Dyson sv21. I've cleaned it as thoroughly as possible. There are no functional issues; it works normally. I confirmed the strong mode runs for 7 minutes. I don't think there's any noticeable odor, but please understand that this can vary from person to person. The battery is a genuine Dyson battery, so you can use it with confidence. You can use it immediately upon arrival! Everything from the filter to other parts are genuine Dyson products. It has been disassembled and cleaned, but it is still a used item, so please refrain from purchasing if you are looking for perfection or are overly concerned about details. Please purchase only after you are fully satisfied. Thank you for looking.