Everything you need to know about Water bottle with a UV filter

A Water bottle with a UV filter uses Ultraviolet (UV) light. UV light kills microorganisms, mold, bacteria, pathogens, and viruses in water. UV light is effective at disinfecting water, but they do not remove other types of contaminants.

Water bottle with a UV filter

How does a water bottle with a UV filter work

A UV water bottle uses UV light that is built into the bottle. When the light is activated it emits UV light that spread throughout the bottle killing all micro-organisms and stop more spreading.

Fill the UV bottle with water fit in the cap and press the cleaning button. Shake the bottle to allow even distribution of UV light throughout the entire content.

How to Choose the Right Water Bottle with a UV Filter 

Here are a few factors to consider before you purchase a water bottle with a UV filter

Method of cleaning

The work of a UV water bottle is to regularly clean the water inside the bottle. This requires activating the cleaning mode which can be done manually and some bottles feature an intelligent self-cleaning function. In the manual method, you are required to remind yourself to press the cleaning button. If you want a hassle-free method an automatic intelligent self-cleaning function is the right choice for you.


When buying anything that ought to be used for human consumption material is the main thing to check. Make sure you choose a bottle that is made of quality material.


The UV water bottle has an inbuilt UV bulb in the cap that emits UV light throughout the bottle. Make sure the bulb is well-insulated and does not come into direct contact with your water this help guarantee safety.

Not only the cap that should be insulated or opaque even the body part of the bottle. opaque bottle does not allow light to escape but it is confined in the bottle. This ensures the rays go through the water as much as possible, unlike transparent bottles.

Power source

UV water bottles come with a lithium battery that is rechargeable using a USB charging cable.

Disadvantages of using a water bottle with a UV filter

A UV water bottle is only for disinfecting water, but they do not remove other types of contaminants. So if your water has lead, sediments, or particles the bottle is not capable of removing such.

It works only with clear water, if your water has particles they will block the light from penetrating throughout the water.

The bottle cannot be used for other beverages besides water or ice cubes

The reason is that UV-C light needs to have a clear liquid to fully penetrate all areas of the bottle and ensure that the system is working.

Our top pick of the water bottle with a UV filter

For a product to make our list of top picks, we choose the bottles based on independent certification and the quality of the material.

We also picked the bottle that has a solid sales record on Amazon, has consistently positive customer reviews, and offers unique features, among other factors. 

CrazyCap UV Water Purifier Bottle

I had the opportunity to use the CrazyCap UV Water Purifier Insulated Bottle and I must say I was thoroughly impressed with this product. This innovative bottle is designed to purify water and keep it clean and fresh, all while keeping it hot or cold for hours.

Firstly, the design of the bottle is very sleek and modern, making it a great addition to any gym bag, backpack, or desk. The bottle is made from high-quality stainless steel and is double-walled, which provides excellent insulation for both hot and cold drinks. The bottle is also a great size, holding up to 17 ounces of liquid, which is perfect for staying hydrated throughout the day.

One of the standout features of this bottle is the NSF-Certified UV Water Purifier, which uses UV-C LED technology to destroy up to 99.9999% of harmful bacteria and viruses in just one minute. This is an incredibly efficient way to purify water, and I was impressed by how simple and easy it was to use. Simply press the button on the cap to activate the purifier, and the LED light will turn on, indicating that it is working. The cap also features a self-cleaning function, which uses the same UV-C LED technology to clean the cap and purify the surrounding air.

Another great feature of this bottle is the vacuum-sealed lid, which keeps drinks hot for up to 12 hours and cold for up to 24 hours. I found that my drinks stayed at the perfect temperature throughout the day, which was a great relief during hot summer days.

Other water bottles with a UV filter that didn’t get into our list of top pick

All the below bottles nearly made our list. However, the filter doesn’t have NFS certifications. The price is a bit cheaper compared to the crazy cap bottle.

LARQ Stainless Steel UV Water Bottle

PHILIPS Water GoZero Self-Cleaning Smart Water Bottle

PHILIPS Water GoZero water bottle is equipped with UV-C LED technology that disinfects your bottle and removes odor. The UV technology automatically activates every two hours and helps eliminate up to 99.999% bacteria and 99.9% viruses.

This bottle has a double-walled vacuum-insulated stainless-steel body. This will help your drinks stay hot for up to 12 hours or cold for up to 24 hours.

When the bottle is out of charge you use a magnetic easy-charge USB port to charge the battery.

UVBrite Go Self-Cleaning UV Water Bottle

Product Features

  • Double-walled insulated stainless steel
  • Rechargeable battery with USB-c charging cable
  • Carrying loop
  • Warranty-it come with a 1-year of warranty
  • Leakproof

UVBrite is a self-cleaning bottle that uses UV-C based purification system to reduce microbes up to 99%.

The bottle features a press button that you press once to activate the normal sterilizing mode. This mode lasts for 180 seconds If water requires extra purification, press the button twice to activate the blitz mode. Blitz mode last for 300 seconds.

It also features an intelligent self-cleaning function that helps in sterilizing the bottle each time you run a cycle.

This bottle features a safety built-in lock that prevents the lid from working if the lid is not securely fastened on the bottle.

It is made of  BPA-free food-grade, 304-insulated stainless steel. The double wall vacuum-sealed keeps water hot or cold for over 12 hours.

The bottle uses a lithium-ion battery that requires charging. A single charge lasts for at least 50 purification cycles.


Does not have automatic contain an automatic self-cleaning mode

Lavone Water Insulated Stainless Steel Water Bottle with UV Water Purifier


  1. Self-Cleaning Function: The self-cleaning function of this water bottle is definitely one of its standout features. The UV-C LED technology kills up to 99.99% of harmful bacteria and viruses in just 3 minutes, which is very efficient. It’s very convenient to have a self-cleaning bottle since you don’t have to worry about bacteria build-up in hard-to-reach places.
  2. Insulation: The double-walled stainless steel construction of the LAVONE Water Bottle keeps drinks cold for up to 24 hours and hot for up to 12 hours. This is great for keeping beverages at the perfect temperature throughout the day.
  3. Design: The bottle has a sleek, modern design, and the handle is a nice touch that makes it easy to carry around. The 18 oz size is perfect for carrying around in a backpack or purse.
  4. Durability: The stainless steel construction of the bottle feels very durable and sturdy, and it’s easy to clean.


  1. Price: The price of this water bottle is on the higher side compared to other insulated bottles. However, given the self-cleaning feature and other benefits, it could be worth the investment for those who prioritize water purification.
  2. Small Mouth Opening: The mouth opening of the bottle is relatively small, which can make it difficult to add ice cubes or clean the inside of the bottle.

Overall, I highly recommend the CrazyCap Award-Winning Self-Cleaning Insulated Bottle with NSF-Certified UV Water Purifier to anyone who is looking for a reliable, high-quality water bottle that also purifies water on the go. The sleek design, excellent insulation, and efficient purification technology make it an excellent investment for anyone who values staying hydrated with clean and fresh water.

More UV water purifying bottles you might like

How to clean and maintain a water bottle with a UV filter

Most UV water bottles can only be hand washed but they are others that are dishwasher safe except the lid.

Frequently Asked Questions About Water Bottles With a UV Filter

Are UV water bottles safe?

UV water bottles are made of the same material as any other standard bottle, the only difference the bottle has an inbuilt UV bulb in the cap that emits UV light throughout the bottle. To make sure your bottle is safe ensure the bulb is well-insulated and does not come into direct contact with your water. Also, make sure it is made of food-grade material safe for humans.

How do I know Water Bottle With a UV Filter is working?

The UV cleaning method is different from other methods where you prove the filter is working by the taste of water the system produces. You can use a bacteria test kit to test whether the bottle is working

What type of water is a UV water bottle can purify?

The bottle purifies water from any source as long as is free from particles. Particles block the UV light from penetrating the water well.

Can the bottle be placed in the refrigerator?

Most of these bottles are already insulated so they won’t cool down the water by keeping it in the fridge.

Can you fly with the bottle?

Yes, as long as you carry it in your hand and not hidden in your luggage.

Some airlines prevent carrying the bottle in the checked bag because of the li-ion battery inside.

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