Thumbnail ImageThumbnail ImageThumbnail ImageThumbnail ImageThumbnail ImageThumbnail Image

1. Ozo-Pen: World's 1st Ozone Travel Water Purifier

Product #: O-Pen TB
$139.00 USD
Price is only valid in the US. Please contact us at prior to placing an international order.

Meet the Ozo-Pen®, the latest advancement in portable water purification devices.  The only device made with "The Power of EO3®" electrolytic ozone technology.

Man holding a Roving Blue Ozo-Pen portable travel water purifier

Whether your adventures bring you to a quaint sidewalk restaurant in a foreign land, or you just want to drink from that cold mountain stream, you can rely on the Roving Blue Ozo-Pen® to ensure that the water is safer to drink.

Our patented Ozo-Pen® (previously known as the O-Pen®) is the latest advancement in lightweight water purifiers. It is NOT a filter. It makes water safer by infusing it with a cloud of ozone gas.  Used by water treatment plants and water bottlers worldwide, ozone is the strongest oxidizer available that can be safely used in water treatment 1

How the Ozo-Pen® is used to Purify Water:

You collect clear water in a cup or water bottle, remove the pen cap, press the On/Off button to activate the ozone cycle, and watch while ozone is dissolved into the water. This takes about :40 seconds.

At the end of the treatment cycle, the water may be used immediately (to clean other things), or you can wait 3 minutes to allow the ozone to treat the water itself.  The pen can be used approximately 40 times before the internal battery (included) needs to be re-charged, which is done like a cell phone, via a usb (type C) cord.  The pen will last for thousands of uses. There are no additional chemicals needed, and no chemicals are left behind.

100% legal and permitted to bring on board all the airlines with your (hand-carried) luggage, you can be sure that the tap water in your hotel room, cruise ship cabin, or nearby stream, is safe to drink, because with the Ozo-Pen®, the World is Your Water Bottle™".

Like deals? Find our company Facebook page and LIKE IT.  Find our YOUTUBE Channel and SUBSCRIBE.  Don't forget our newsletter, either, you can find it on our home page.  Ocassionally, we'll post special coupon codes in all those places so you can save!

 Advanced Technology

The Ozo-Pen® is an advanced water purifier housed in a steel cartridge that looks like an ordinary writing pen.


It will purify .5 L or 16 oz. of water in :40 seconds, wait time is 3 minutes.


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

No Waste

Rechargeable battery w/ USB cable included. Purifies approximately 30 liters per charge (about 60 uses)

See the Ozo-Pen® in action on our Youtube page.

Want it fast? Select from Overnight or 2-day shipping options on our product page.

Still have a question and would like to discuss it with a real Roving Blue Human? Click this link to let us know how to reach you.  You just may earn a disount!

New Lower Price!
how to use the Ozo-Pen portable water purifier

Reddy Yeti Unboxing Video about O-Pen
Check out the "Unboxing" of the Ozo-Pen® by the folks at Reddy Yeti

Also, here is How to use your new Ozo-Pen® (Gen 4 introduced in late 2022) if you are not the type to actually read instructions.

And, lastly, the link to the printable user manual.