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
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.