
Roving Blue Ozo-Pen® | Ozone Water Purifier | Travel Water Purifier
- Rechargeable: Convenient USB Type-C charging cord included.
- Travel-Friendly: OK to carry in your airplane carry-on luggage, small enough for your backpack, purse, glove compartment, bug-out bag, or get-home bag.
- Lightweight Design: Weighs just 3 oz (85 g), making it easy to take almost anywhere.
- Fill a glass or bottle with clear water.
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Turn on the pen and select your desired water volume:
- 1 click for 8 oz
- 2 clicks for 16 oz
- 3 clicks for 24 oz
- Place the pen in the water and allow it to complete its ozone cycle. Stir gently while the water is being treated.
- A yellow light flashes during the 3-minute contact period. Ozone needs contact time to do its work. When the light turns green, your water is ready to drink.
- 41 cycles of 8 oz
- 19 cycles of 16 oz
- 9 cycles of 24 oz
Roving Blue® Ozo-Pen® | Ozone Water Purifier | Travel Water Purifier
• Ideal Travel Water Purifier
• Lightest Hiking Water Purifier
• Smallest Portable Water Purifier
The Ozo-Pen® is an innovative ozone water purifier designed to resemble an ordinary pen. Perfect for travel, hiking, camping, emergency preparedness, and everyday use, it treats up to 24 oz of clear water using Roving Blue's proprietary EO3® electrolytic ozone technology.
Our newest model features three treatment settings, allowing you to purify 8 oz, 16 oz, or 24 oz of water with the press of a button.
Key Features
Simple Operation
Battery Life
Treats approximately:
...before needing to recharge.
For additional protection when treating natural water sources that may contain silt, algae, bacteria, viruses, or cysts, pair the Ozo-Pen® with the FortiFilter™ ultrafilter. Ozonate first, then filter as you drink for an added layer of protection.
Click here for printable User Instructions.
Or, watch our "How to Use" video:
And, check out our Youtube Review by Reddy Yeti:

