Waterguard - silver nitrate blog post
Waterguard is one of the best ways to keep safety shower fluid from being contaminated by harmful bacteria and protecting accident victims. The secret ingredient is active silver nitrate that’s specially designed to destroy bacteria, such as Legionella, E. coli, and Staph. However, Waterguard doesn’t cover everything. Learn about its limitations and what you can do about them.

Silver Nitrate in Water Treatment

The application of silver nitrate (AgNO3) on antibacterial properties has been going on since Roman times. An ionic compound, an atom or group of atoms that carry a charge as the result of losing or gaining electrons, can be positive or negative. One such ion that is produced from dissolved silver is silver nitrate or Ag+. The natural mineral that has a single positive charge protects against a range of both gram-negative and gram-positive bacteria, including:




  • Pseudomonas
  • Salmonella
  • Acinetobacter




  • Bacillus
  • Clostridium
  • Listeria
  • Staph
  • Strep


Research shows it may also work on certain fungi, such as Aspergillus Niger, Candida albicans, and Saccharomyces cerevisiae and even Cryptosporidium. The use of silver nitrate in water filtration improves the microbiological efficacy of ceramic water filters, such as with Waterguard. When you place the canister into the water, it releases silver nitrate nanoparticles, which attracts the bacteria and filters them from your safety shower tank.

These physical properties of semi-conductivity, magnetism, and light emission (in the far infrared spectrum) disinfect the shower fluid, removing potentially dangerous bacteria that can cause health issues. Waterguard also prevents the build-up of scale, biofilm and rust, conditions that can affect water flow, valve operation and the growth of harmful bacteria.

What Waterguard Doesn’t Cover

Although Waterguard protects against many strains of bacteria, there are applications for which it doesn’t work; these include algae and yeast. For these types of issues, we may have solutions with ATS Innova, a branch of ATS. ATS Innova has a plethora of products and solutions for water treatment. We carry several product lines specially designed for water treatment challenges, such as algae. We invite you to contact one of our water experts at 855.215.4600 for more information.

Call ATS ShieldSafe® for Waterguard

For inquiries on our safety shower/eyewash units, we hope you will contact ATS ShieldSafe at 800.747.9953 to learn how we can keep your workers safe on-site. We offer the best-built safety showers/eyewash units and optional accessories, including our two-year protection with Waterguard using silver nitrate. Our safety experts will guide you to the best solutions that will last and give corporate peace of mind and assurance of being in full ANSI compliance along with privacy and protection of all your workers. Contact us today!

Unsure of your next step? Let's Talk.

ATS ShieldSafe provides cutting-edge low maintenance safety showers that provide the best protection in the industry. Trailer and stationary showers provide you and your workers with the protection they deserve.

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