I am traveling in Bali and the Gili islands. This filter has been great for safe drinking water. It's light weight and doesn't take up much space in my backpack.

Worked Great

To be honest I used this only a couple times on my hunt, just to give it a try. It seemed to work well, I didn't get sick when I used it in the unfiltered water and drank it.

Steripen Classic 3

The best steripen on the market. Light, durable and easy to use. It’s nice to have the peace of mind knowing that you’ve eliminated possible viruses from your water

Reliable And Convenient

After using this on multiple backpacking and hunting trips in 2025, I believe. This purifier is so convenient compared to pump or gravity filters, it is worth the extra weight and batteries. I took three of my kids (under 12 year old) on a backpacking trip, and this saved me so much time and effort. It is easy to teach others how to use, so once I train my children, this will be an easy way for them to help. I appreciate the reliability of this purifier. I used this even after night temperatures dropped below freezing and did not have to worry about it freezing, unlike my backup micron filter (I kept that in my sleeping bag). Overall, this purifier is very convenient and reliable. The draw backs are the size and weight, which makes it less attractive for ultralight systems.

Battery Door Does Not Close

Great find for a quick trip to South America. The battery door does not close well and therefore extra care is needed when using the device for water treatment. I would not recommend trying to manage the door, the batteries, and a water bottle in places where batteries could be lost/dropped.

Clean Water

Wasn’t working great when I first started using it maybe it was the battery or how cold it was because we were up sheep hunting and malfunctioned a few times.

Great Little Back Up For Back-packing

I really like this Steripen, the ability to use fresh batteries makes it easier to swap out power source, instead of relying on an internal rechargeable battery.

Great For Emergency Pack

These steripens take up very little space in my emergency packs and are worth their weight in gold in an emergency. They are foolproof to use and get you safe drinking water in 90 seconds.

Handy, very useful. Great protection against harmful contaminants

In Case Of Emergency And Outdoor Fun.

I like that this will kill the viruses and bacteria in my drinking water. Even wheb water looks clean it may not be so this will give you peace of mind. I like that it used AA batteries that are easy to come by and accessible. Great for emergencies and for when hiking or camping or even traveling.

Pretty Cool Water Tool

This seems to work pretty well... I'm planning on testing some creek water, before and after to see how it really holds up before I take it on the trail. The price was great and it doesn't seem easy to come by in the retail space. I would say it's a good find! I'd reccomend this to anyone who camps/hikes.

Efficient And Effective

Used this for 5 weeks on the GDMBR. Found the Classic 3 Purifier to be easy to use and effective. I have dealt with Giardia twice in my life. As a result, I very particular about my water treatment system. After considerable research and an understanding of water quality on the GDMBR, I decided this device would work for me. That said, I do have a couple of complaints. First is that you can only treat 1 liter of water at a time. This results in a longer process when have to purify multiple liters of water. The other is the lack of a battery life indicator. After a month of use the batteries were done and I was left with my primary purifying tool until my next resupply. Despite these complaints, I found this to be a great tool while bike packing; highly recommend.

Great Product But…

Make sure you keep any eye on the batteries. The button can activate in your backpack and kill the batteries. I take the batteries out of mine after each use so I don’t get in a bind again. Other than that the unit has worked flawlessly

Great Addition To My Hunting Kit

I got this because some places I hunt there are Cattle leases. The Sawyer squeeze filter left me worried about viruses in the creeks. Adding this on gave me piece of mind and it works great and is easy to use for anyone.

Useless

I hated this piece of junk, I threw it away after a couple uses. It felt flimsy and cheap and over all I was not impressed.