I purchased this air duster for multiple reasons... It's great for blowing off sawdust from my miter saw and workbench. I use it in the house for dusting my flower arrangements instead of having to wash them. If you are a senior you can dust high light fixtures and shelves, window ledges, clean the porch off, it's great for dusting lamp shades. I will try it in the car next. It does take exactly three and a half hours to charge. I just love it but my cat may move out if I keep using it on everything.