Regular tap water often contains minerals, such as iron, zinc, and sodium. While these contents aren’t harmful to your health, they can be problematic when window cleaning. Additionally, some towns and cities may have a higher mineral content than others. That’s why innovative cleaning companies are using deionized water instead. If you’re curious about this cleaning method and how it works, here’s what you should know.

What Is Deionized Water?

Deionization is a purification process that removes mineral ions and replaces them with hydrogen and hydroxyl ions. Deionization uses certain resins, which are organic polymers, to attract mineral ions during the purification process. Other purification methods include distillation, which involves boiling the water so that it evaporates, filtering, and reverse osmosis. These processes can be combined to increase water purity even further. 

How Does It Benefit the Window Cleaning Process?

Window CleaningWhen washing windows with tap water, minerals may leave white streaks behind after the liquid dries. Because deionized water is free of minerals, streaking is less likely to occur. Window washing with purified water is also more efficient since the windows don’t need to be squeegeed to remove streaks.

Cleaning with deionized water also makes harsh chemical cleaning agents unnecessary. These chemicals can run off into the surrounding soil and water supply when outer windows are being cleaned, which can have an impact on local wildlife and plant life. With deionization, there’s no concern about contamination. 


If you want a company that uses deionized water for window cleaning, contact Squeeky Clean Window Washing in Bethesda, MD. This method leaves windows and glass clean and free of streaks, while also reducing the environmental impact of harsh window washing cleansers and chemicals. Along with their residential services, they also business owners throughout Montgomery County, Northwest DC, and Northern Virginia keep their properties clean. Get a free estimate by calling (301) 424-4020 or visiting them online