Our car windshield spray contains disodium EDTA and sodium lauryl sulfate. It can reduce the damage of sewage/acid rain/rain to the car glass， automatically and quickly form a water-blocking film on the glass surface， so that the wiper can work better， prevent water from wetting the windshield and rearview mirror， improve visibility and clear vision in wet weather， thereby improving driving safety. Its use method is very simple: clean the glass and dry， take an appropriate amount of spray evenly spray on the glass， leave it for 3-5 minutes to semi-dry， and wipe the glass with a dry towel. It helps to quickly remove stubborn stains， oil film， insect stains， water stains， etc.， on the surface of the glass， making driving safer.