Frequently Asked Questions

Qarl bottles feature patented UV-C sterilization technology that automatically activates every 2 hours to eliminate 99.9% of bacteria and viruses in your water. Combined with vacuum-insulated stainless steel construction, smart temperature monitoring, and stylish design, Qarl represents the next generation of hydration.

With normal use, a fully charged Qarl bottle can last up to 30 days. The LED indicator will turn red when battery is low. A complete charge takes approximately 2 hours using the included USB-C charging cable.

The stainless steel bottle component is dishwasher safe when separated from the electronic lid. The electronic lid containing the UV-C technology should be gently hand washed with mild soap and water. Never submerge the electronic components completely.

When the UV-C sterilization cycle is running, a subtle blue glow will be visible around the lid's edge for approximately 60 seconds. You can also manually activate a cleaning cycle by double-tapping the touch-sensitive top of the lid.

Each UV-C sterilization cycle runs for 60 seconds, which is sufficient to eliminate 99.9% of harmful bacteria and viruses. The bottle automatically runs a cycle every 2 hours to ensure your water stays clean throughout the day.

No. The UV-C light is safely contained within the bottle and only activates when the lid is securely closed. Built-in safety sensors prevent activation when the lid is open, and the wavelength used is specifically calibrated to be safe for consumer products while remaining effective against microorganisms.

Qarl bottles come with a 2-year limited warranty covering manufacturing defects. The electronic components are covered for 1 year. Register your product on our website to activate your warranty coverage.

Yes! We ship to over 120 countries worldwide. International shipping times vary by location, but typically range from 7-14 business days. Custom duties and taxes may apply and are the responsibility of the recipient.

Qarl bottles are crafted from premium 18/8 food-grade stainless steel with a BPA-free plastic lid housing our UV-C technology. Our bottles contain no harmful chemicals and are designed to last for years of daily use.

For regular cleaning, rinse with warm soapy water and allow to dry completely. For deep cleaning, use a bottle brush with mild dish soap. The electronic lid should be wiped clean with a damp cloth. For sanitizing, you can use bottle cleaning tablets for the stainless steel component.