What is electrostatic spraying?


The COVID-19 pandemic has turned new attention to disinfection processes. If you’ve heard any expert discuss disinfecting non-standard areas like fitness centers, restaurants or hospitals, you’ve probably heard them mention electrostatic spraying. But how do electrostatic sprayers work?

They're based on the principle that opposite electrical charges attract. If you take the “positive” end of a magnet and put it against the “negative” end of another magnet, they attract and stick. If you put the positive ends of two magnets together, however, they repel each other. An electrostatic sprayer is a device that electrically charges disinfectant, giving the solution a positive charge. Electrostatic sprayers use this principle to ensure fast, even coverage of the disinfecting agent. 

The positively charged particles of the disinfectant in the sprayer seek out and cling to negatively charged, or grounded, surfaces (which is basically every surface in a hospital room, office, food service facility, etc). At the same time, those particles of the disinfecting solution repel each other. This means you’ll get safe, thorough coverage – without clumping or over-spraying. It also means you’ll be able to coat (and therefore disinfect) tight spaces and those areas that are out of your line of sight.

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