I recently ordered this product due to high pollen count in my area. I have a black car and I couldn't resist washing the car every day. Buying this product has saved me hours. I'm able to dust off my car within 5 minutes. I haven't had problems with scratches or leaving residue on my paint. The product works just as advertised. I will re-order 2-3 additional units for my house and to serve as backup for my current one.