Science behind Portable Water Purifier

We have run meticulous laboratory tests to ensure our UV Light in our portable water purifier makes water from ANY source (free of debris) 100% safe to drink. See the full lab report here.

CrazyCap uses advanced 278nm deep UV LED to effectively sterilize water. See the charts above showing a significant reduction of bacteria in the contaminated water in both Normal and Crazy Mode Sterilization. The spectrum (260nm to 280nm) of light is found to have maximum disinfection capability.

Thanks to the recent development in LED technology, this special spectrum of light can now be produced without using toxic Mercury. When the Deep UV light enters the microbial cell, it destroys the active core (nucleic acids). Cells without the active core will no longer be viable.

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42 Product Ratings and Reviews

4.7

Overall Star
Rating

5 Shopper Approved - Review Star
36
(86%)
4 Shopper Approved - Review Star
4
(10%)
3 Shopper Approved - Review Star
0
(0%)
2 Shopper Approved - Review Star
1
(2%)
1 Shopper Approved - Review Star
1
(2%)

About this Company

Science behind Portable Water Purifier

We have run meticulous laboratory tests to ensure our UV Light in our portable water purifier makes water from ANY source (free of debris) 100% safe to drink. See the full lab report here.

CrazyCap uses advanced 278nm deep UV LED to effectively sterilize water. See the charts above showing a significant reduction of bacteria in the contaminated water in both Normal and Crazy Mode Sterilization. The spectrum (260nm to 280nm) of light is found to have maximum disinfection capability.

Thanks to the recent development in LED technology, this special spectrum of light can now be produced without using toxic Mercury. When the Deep UV light enters the microbial cell, it destroys the active core (nucleic acids). Cells without the active core will no longer be viable.

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CrazyCap 2
CrazyCap 2
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Pb - 03/22/2022

Good product

I've been looking for something to get away from bottled water. Thank you for this


CrazyCap 2
CrazyCap 2
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Steven T - 03/15/2022

Great Bacteria & Virus Free H20

Water taste great. Best of all, I don’t have to worry about Bacteria and Viruses. Fit snugly in my car cup holder. Perfectly sized 25 oz bottle. Some people say it is a bit heavier than other bottles, but I say, “They are wrong.” It is light, yet sturdy and looks real good too. Will be taking my 25 oz CrazyCap 2 everywhere I go. Thanks Waatr for the great product.


CrazyCap 2
CrazyCap 2
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Joanna - 03/09/2022

It's great peace of mind knowing my water is safe to drink!


CrazyCap 2
CrazyCap 2
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Gail S - 02/25/2022

It’s easy to hold. It doesn’t slip in your hand. & I like the feeling that my water is safe


CrazyCap 2
CrazyCap 2
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Ashley - 01/14/2022

Great bottle!

This is a fantastic product and the company offers great customer service if you ever have an issue!


CrazyCap 2
CrazyCap 2
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Tiffany - 01/08/2022

Great investment!

Got this as a gift for my partner - and now I want to get one! It’s super simple to use and charge. The design of the bottle is sleek and has a nice soft-touch feel compared to traditional insulated bottles. Great to have when there isn’t filtered water available, and to take on trips. It definitely isn’t too heavy to carry on hikes as well.


CrazyCap 2
CrazyCap 2
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Debbie - 01/06/2022

Easy to ise

Great to use when we’re camping!!


CrazyCap 2
CrazyCap 2
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Katy - 01/03/2022

Water tastes better!

I tried it out for a week and I notice a difference in my water taste! I love my water bottle!


CrazyCap 2
CrazyCap 2
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Anonymous Customer - 12/17/2021

New one works perfect

The first Crazy Cap was happy replaced when not working. I only paid shipping Thx


CrazyCap 2
Shopper Approved - Verified Customer
CrazyCap 2
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Polly R - 12/14/2021

Thank you. Love the customer service and follow up!

Polly R

12/14/2021 - California

Thank you!


CrazyCap 2
CrazyCap 2
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Jennie - 12/07/2021

Fantastic water bottle for travel and hiking

This water bottle is excellent! I've used a UV pen for years to sterilize water while hiking and traveling and this is a big upgrade, having the UV light right in the bottle and rechargeable (no batteries to change!). Highly recommend it. The water bottle is also very high quality.


CrazyCap 2
CrazyCap 2
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Jillian F - 11/13/2021

Loving it

LOVE that I don’t have to clean this like a normal water bottle and it purifies the water. I only wish they had a straw or flip top straw version. Maybe one day. Looks so sleek too!


CrazyCap 2
CrazyCap 2
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Rayna - 10/24/2021

Worth it for your health

I bought this hoping it would help me drink more water at work (our water isn't the best) and it does so far! Takes all the weirdness out of the water and has me reaching for water through the day.


CrazyCap 2
CrazyCap 2
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llnicely - 10/15/2021

A gift I WILL use!

Surprise gift from my husband that I LOVE! Now I carry it everywhere and know I'll be hydrated all day long. Works on my bike and no worries about finding potable water on the trail.


CrazyCap 2
CrazyCap 2
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Paul - 10/08/2021

Great Quality Bottle

I got the Crazy Cap 2 Mellow (25 oz) in Miami Blue, with a free color-matching handle. The bottle is very high quality construction with a nice matte, non-slip finish. Because it needs a long neck for the cap and is insulated, the bottle is a little bigger than I'm used to, but not enough to be a problem. After I charged the cap from my laptop, I checked the UV light function on the included paper test strip, and it is functioning. I hope to use this on an upcoming trip to Africa to purify tap and bottled water, with no need to filter out debris or cloudy particulates that might impede the UV purification. I will probably use the cap (carefully) to clean the neck of the bottle (since it could get contaminated from filling), which doesn't get the UV light when the cap is screwed in for purification.


CrazyCap 2
CrazyCap 2
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Heather - 10/06/2021

Obsidian For the Win

I am very pleased with my 25oz Obsidian bottle. The presentation is very sharp. They did a great job with packaging. I've been using it a few months now. The bottle has a narrow neck, which is great for ladies with smaller hands, or anyone that has a hard time grasping something girthy ;) The handle is an absolute necessity, and allows you to hook it on your thumb even with your hands otherwise full. The bottle fits perfectly into my Elantra's beverage holders. Not too large or too small. I think the only downside I've found is that I can't fit any ice cubes into it from my fancy undercounter icemaker, which produces larger icecubes than a built-in icemaker would from a fridge/freezer combo. Bit of a bummer, but not a deal-breaker. The ease of carrying and holding it, especially with smaller hands that are constantly hurting, makes up for it by far. I would happily buy another one, and plan to do so around Black Friday :) Note: The Teakwood, 25oz, requires the smaller 17oz handle. The neck is ever so slightly narrower than the Obsidian. Suggestion: A stainless steel option would be AMAZING for those of us in industries that use paint thinners and other solvents! Exposure to these solvents does seem to cause some cloudiness to the finish. I'm extra careful when painting.


CrazyCap 2
CrazyCap 2
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Anonymous Customer - 09/25/2021

Just Avoid Buying From This Brand

Worst shopping experience ever!!! The product came 14 days late with a broken accessory and each time I email them, they pass me to the shipping carrier!! Don’t waste your time and money! If there was a -5 star option, I would give them -4 on a scale of -5 to 5!

Company Response

Hi,

Sorry for your experience but please allow us to explain.

We usually ship the product within 24 to 36 hours. As per our record, your shipment left our facility on time but the shipment got delayed in transit by the carrier side.

We do not have any control over the transit delays as the carriers are independent but as per our policies, the WAATR team made sure to assist you and provided a solution already.

Please feel to reach out to us at [email protected] in case of any other questions or concerns. 

Thank you! 


CrazyCap 2
CrazyCap 2
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Happy P - 09/22/2021

Amazing product

My wife and I purchased a couple of bottles recently and we absolutely love them! Eliminates the need to buy water bottles and the technology behind them is amazing yet simple to use!


CrazyCap 2
CrazyCap 2
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tonio - 09/13/2021

very useful purchase

This bottle provides protection to your health it eliminates the toxins in the water that doesn’t belong there and i love the bottle i get to drink water without having to worry about whats going in my body


CrazyCap 2
CrazyCap 2
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Anonymous Customer - 09/08/2021

love my bottle

the last water bottle you'll ever need. water always tastes clean and customer service is awesome!!!


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