Founder’s Story
After getting sick from drinking contaminated bottled water, I had zero confidence in all water sources, especially while traveling. Since no effortless, eco-conscious solution to this problem was available, I decided to tackle the issue and created WAATR.
Award Winning.
TIME Magazine Best Inventions 2020.
Outdoor Retailer Best Inventions 2020.
Women's Health Fit Tech Award 2021.
CNET Best Overall Self-Cleaning Bottle - 2020, 2021, 2022.
Shop nowShop the world’s most advanced purification units
Everything you need to know to pick the right product for your lifestyle.
| Features | PureMax 4D | CrazyCap 2 | CrazyCap Pro | LYT | HydroCap |
| Filters metal & chemical contaminants | |||||
| UV-C purification for bio-contaminants | 99.99% | 99.99% | 99.99% | 99.99% | 99.99% |
| Hydration Reminders | |||||
| Self-cleaning | 4X | 1X | 4X | 4X | 4X |
| 4D Purification | |||||
| Smart Safety | |||||
| UV-C LED Power | 2X20 mW | 15 mW | 20 mW | 10-12 mW | 2X20 mW |
| Shop | Shop | Shop | SHOP |
The Science
4D Purification
PureMax 4D uses 2X 20mW UV-C LEDs and a proprietary blend of coconut charcoal + ion-exchange resin in a filter cartridge system to super cleanse H20.
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UV-C Purification
When biological organisms are exposed to UV light, the proteins present on the cell wall ruptures and causes the death of the microorganism.
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Self-Cleaning
UV rays in the cap automatically activate, keeping your water 99.9996% fresh and clean—and the bottle free from yucky mold, mildew, odors .
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Richard Bullington
“Just got it but it’s simple and long lasting. Don’t have to buy parts and additional gadgets. Should last a really long time.”
DCC
“I bought this water purifier for my husband, and he can't stop talking about it! The ease of use and the smart design makes this a valuable tool on his wilderness trips.”
Rebecca
"This is a fantastic product. I love the fact that I don't have to clean the inside of the bottle, the Cap kills germs & viruses I like the very sleek 17oz bottle, it's easier for me....”
Chu V
“A bottle for any occasion, commute, day trip, different sizes for different uses. No need of ever using plastic bottles anymore. Keeps your drink warm or....
