Outdoor Gear Reviews

O-Pen by Roving Blue

The Roving Blue O-Pen is a tool to ensure that your water is safe to drink. The O-Pen allows you to treat your water with a cloud of ozone gas which is used by water treatment plants and water bottlers worldwide. Ozone happens to be one the strongest oxidizers available, and it leaves behind no toxicity or harsh tasting chemicals that could be a problem for your body.

The O-Pen uses electrolytic ozone which is far more powerful than chlorine and proven to be highly effective against multiple forms of bacteria, viruses, cysts and dangerous organisms. This is important because when you are traveling around the world, not all water is safe to drink. If you have not built up a local immunity to specific organisms your body can react in extremely harsh ways. I learned this first hand on a trip into South America, and I have not made the same mistake twice.

Ozone is a serious player in killing micro-organisms and parasites. These organisms cannot develop a resistance to the O-pen. The O-Pen contains a lithium battery built in, and it is safe and legal for all airlines in your carry on luggage. The unit is rechargeable and should be used on all water whether that is in your room, in camp, beside a stream and honestly even in water bottles if you doubt its source. There is no need to trust anyone; why not be protected and keep your body safe?

Using the Roving Blue O-Pen

The unit is extremely easy to use. Pull off the bottom cap, stick the actuator into the bottom of your glass, and press the button. It takes about a minute and you can clearly see the ozone rise out of the water with bubbles. Once it is done it shuts off and your water is safe to drink. The unit will work for about 50 uses per charge and it is easy to just plug in and charge. 

I use it for all water when traveling, even for brushing my teeth. I treat the water that is going into my mouth first so that no harmful organisms come into contact with my mouth in any way. 

Roving Blue Specs

Advanced Technology

The O-Pen® is an advanced device housed in a black metal cartridge.

It will purify .5 L or 16 oz. of water in under one minute.

The O-Pen® weighs only 1.2 oz. (30 g).

No Waste
Rechargeable battery w/ USB cable included. Purifies approximately 25+ liters per charge (about 50 uses)

Partial List of Micro-organisms that can be in drinking water, and that Ozone Can Destroy:

  • Bacillus anthracis (Anthrax)
  • Cholera
  • Cryptosporidium
  • Giardia
  • Influenza
  • Poliovirus (Poliomyelitis)
  • Salmonella paratyphi (Enteric Fever)
  • Streptococcus faecalis
  • Bacteriophage (E. Coli)
  • Dysentery bacilli (Diarrhea)
  • Hepatitis
  • Legionella pneumophilia (Legionnaires’ Disease)
  • Salmonella (food poisoning)
  • Salmonella typhosa (Typhoid Fever)
  • Tuberculosis

Roving Blue makes quite a bit more of these product than just the small personal O-pen. They are a serious player in producing high quality equipment to keep your drinking water safe. This one though is a serious tool when traveling to keep you safe and those around you safe. Check them out at RovingBlue.com

Kevin Paulson

Kevin Paulson is the Founder and CEO of HuntingLife.com. His passion for Hunting began at the age of 5 hunting alongside of his father. Kevin has followed his dreams through outfitting, conservation work, videography and hunting trips around the world.

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