Tips using formula 1. spray evenly on surface to be cleaned. After 3 to 5 mins wipe off w/ dry lint free towel like Microtec towel. Gaya nga sabi ni spitshine hwag medyo tapangan sa surface to be cleaned. It also works in car ceiling stain. For those who smoke in the car and wants to get rid the dark ceiling stain. 101% Tanggal yan. I should know coz I was a heavy smoker before. Hehe