Fill the portable water purifier with a water from a questionable source. Note: Water needs to be free of debris and transparent to the deep UV light.
Delivery & Payments
CrazyCap makes water safe to drink. Clean drinking water shouldn't be a luxury. It's a basic necessity in everyday life that should be available to everyone.
- Practical for boil water alerts.
- Chemical-free sterilization.
- Perfect for travelling abroad.
- Auto-cleans your bottle.
- Rechargeable replacement cap for cola-style bottles
Set Water Free™
Deep UV Purification Cap - Works with your Favorite Bottle! CrazyCap portable water purifier makes water from any source 100% safe to drink. Ideal for work, gym, day trips, and long travels. Ditch plastic bottles for good!
Advanced deep UV light sterilization
Advanced deep UV sterilization kills any threatening bacteria, making any tap water safe to drink.
Love your favorite S’well bottle, but want to enjoy the next level of purification with UV light? No problem! CrazCap fits most 9, 12, 15 & 17 oz cola-style bottles and the major brands, like MIRA, BonBon, Sportneer, Live Long Life, La Vida, S'well, Manna, POP, Sunsella, Aorin, Inosu, Simple Modern, HoneyHolly, and many more.
This UV cap will also disinfect any surface: laptop, desktop, cutlery, and much more - try it today!
1. Fill the portable water purifier
2.Tap the touchpad
Enjoy safe drinkable water anywhere with full confidence.
4.Recharge portable water purifier
CrazyCap 2 lasts up to 7 days on a single-charge. Portless charging ensures 360° water seal.
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.