What Is Oxidation Reduction Potential (ORP)?
ORP, or Redox Potential, is a measurement of water’s ability to oxidize contaminants. The higher the ORP, the greater the number of oxidizing agents.
Checking ORP is a simple method to monitor the effectiveness of a sanitizer or the quantity of anti-oxidants in a liquid. In generalized terms for humans, a higher ORP is better for outside of the body, while a lower ORP is preferred for consumption due to the high anti-oxidant value.
There are numerous applications for ORP, each with its own specific optimum value. For example, the minimum ORP for pool & spa disinfection (set by the World Health Organization) is 650 mV. Though the WHO has not set a standard for ORP in drinking water, anything below -550mV is considered too strong and not recommended for drinking.
**HM Digital makes no health claims regarding ORP nor the use of ORP testing. It is the responsibility of the user to consult a professional in the applicable field for all safety and health concerns prior to the use of this meter.
Products for Water Quality
Did You Know?
Water is our planet's most precious resource.
- The average American uses about 50 gallons (190 liters) of water daily.
- Flushing a toilet uses 2 to 7 gallons (7.5 to 26.5 liters) of water.
- A five-minute shower uses 25 to 50 gallons (95 to 190 liters) of water.
- Leaving the water on while brushing your teeth wastes 2 gallons (7.5 liters) of water each time!
- At least 400 million people live in regions with severe water shortages.
- Water is the original health drink. It contains no fat, no calories and no cholesterol.