This is a light and easy purifier..used this as one of our main water treatment applications for a long trek in and out from GII bc in Pakistan, and it worked extremely well. Liked that the water tasted "clean" and that it was a fast, simple, and light system to use. I would order the extra salt package available for longer periods of travel to ensure that you don't run out. Highly recommend this product- when every ounce counts, this wins on weight to performance ratio, and we definitely put it to the test in areas and environments where there was a lot of fluctuation in temps, and exposure to foreign bacteria.

I like this product; it's small and very easy to use, and awesome for traveling in places where you want to treat the water from the tap. In the backcountry, I guess I prefer a pump...I found the taste of the water we treated with this to be overly chlorine-y. We might have been overdosing it, though. At any rate, I'm glad I have it, and continue to use both methods depending on the needs.

I have been using this purifier for a few years now and ran into trouble on a trip where temps where hovering in the low teens. I had a hard time making the brine solution required for the chemical reaction with the cold water. I also had a problem with my original battery in the low temps. My friend was carrying the UV light treatment device and it worked fine but he needs 4AA batteries which makes his much heavier. This is great for mild weather, tastes fine, and is super light. I still trust it more than anything else on the market because the water you treat will treat anything it comes into contact with. Therefore, one can shake the bottle to treat the inside and flip it over with the lid partially unscrewed to treat the threads and cap on your watter bottle. For this reason it's much more trustworthy than the UV light options even if you have to wait 30 min to drink the water after treating.

I took a group of 10 boys into the Sierras for a 3 day trip. Most of the boys had not had any previous camping experience so I knew we were going to use a lot of water. The MIOX worked very well for making large quantities of water in preparation for cooking and setting up for small hikes. The one side effect that I ran into was the taste of chlorine that would build up in the bottle after approx 5 refills. This is not a problem for cooking because it boils off real fast. On the second trip we used the MIOX for all of the cooking and cleaning water and alternated MIOX and ceramic filtering for drinking water. The combination worked very well. The MIOX works great as long as you plan ahead. The ceramic filter is better if you want a small amount of water quickly. I will be using this filter from now on whenever I go out with a group of 3 or more. It is small, durable and can purify as much water as you have storage for.

I've used these professionally for the past 4 years. Whether on a personal jaunt or guided trip, the Miox is simple and light weight. It is similar to iodine in that you need to wait for the ionized solution to treat your water, but it's treat a go unlike a pump. So stop, fill, treat, and 20 minutes down the trail go ahead and drink. Battery life is affected by the cold- and the batteries aren't easy to find so if you're traveling off the beaten path you may want to think about extra batteries or another system. Otherwise, I carried 1 set of batteries and treated enough water for a group of 10 for 12 days.

I've been using this for several years (since it first came out) mainly in the Sierra-Nevada. It has never let me down in any way. It's light, it's easy to use, and it works.

I know I can rely on the treated water from this beauty wherever I am. What more could I ask from it?

This purifier is the best ive had. It uses electricity to basically create clorine from salt to put in the water. It works great, is about the size of a mini-maglight, is incredibly light, and even though it uses clorine it doesn't make the water tast bad. The only draw back is that since it is not a filter it does not remove silt from cloudy water. It is great for clear water from rocky streams or lakes. If you want to go fast, light, and compact this is the filter. If you backpack through areas with silty/cloudy water, I suggest the MSR miniworks.

I bought one of these a few years back because it was so small. You can pare down the unit so that the kit will weigh about 4.25oz. But it takes a while to purify the water...not a big deal when you're at camp, but a pain when you're in the midst of hiking. The entire process takes about 10-12 minutes and you might have to do it twice (or more) times before it is purified. It comes with test strips that tell you if you were successful, so there is no guessing. Definitely check out the SteriPen if you're a hiker.

i've had one for a couple of years. Works a treat.

Very useful but had trouble with it couple of time but had it replaced under warranty with no question asked... But now as I look back, I think it was due to the extreme cold weather (Aquamira tablets would work best for this situation).

Love this as AT hiker in decent temperature when I've treated my water frequently but I have mailed it back to home as I've stopped treating my water with an exception for when it rains (I do uses Aquamira for that).