Card On Guard Home Page

On Guard Against Bacteria, Naturally


Why You Need It

  • Saves Money
  • Less Maintenance
  • Healthier Bathing
  • Better for the Environment
  • More Natural and Enjoyable Water

How It Works

Our BioPhotonX UV Light Conversion Technology captures and magnifies UV light and breaks down portions of the water molecules that reform to create Free Radicals that attack, weaken and inhibit reproduction of your pool’s bacteria

How You Use It

  1. Put Card On Guard in your pool or hot tub after confirming chlorine/bromine is at 2 ppm
  2. The next time you put chemicals in your water, reduce the amount you use by 50%
  3. Keep reducing amount of chemicals by 50% if weekly water quality test results are OK (1‑2ppm for free chlorine and a pH of 7‑8)

It’s that simple.

How You Know It’s Working

Your water test kit will show you if there is still an acceptable level of free chlorine/bromine (1‑2 ppm) available to fight bacteria. If your test kit shows that you are still in the “ideal” range, you know your Card On Guard is working.

Frequently Asked Questions

Common questions and answers.

Our Story

We Believe We Can and should develop and use natural solutions to address more of humanity’s everyday problems.
For nearly 2 decades we have been developing a method of using the photonic energy of light to create simplified, versatile, easy to use, unplugged products that can do what most believe only chemicals can do. Yes, We Can

What Users Say

We have a 10,000 gallon pool and we reduced our chlorine by…