Front view of 500 mL Kiyo UVC Bottle in Carbon Black
Front view of 500 mL Kiyo UVC Bottle in Blue Hour
Front view of 500 mL Kiyo UVC Bottle in Castle Rock
Front view of 500 mL Kiyo UVC Bottle in Graphite
Front view of 750 mL Kiyo UVC Bottle in Black
Front view of 750 mL Kiyo UVC Bottle in Blue Hour
Front view of 750 mL Kiyo UVC Bottle in Castle Rock
Front view of 750 mL Kiyo UVC Bottle in Graphite
Front view of 500 mL Kiyo UVC Bottle in Black
Back view of 500 mL Kiyo UVC Bottle in Black
Close-up view of lid and strap of 500mL Kiyo UVC Bottle in Black
Close-up view of button of 500 mL Kiyo UVC Bottle in Black
View of UVC light and lid of 500 mL Kiyo UVC Bottle in Black
Front view of 500 mL Kiyo UVC Bottle in Blue Hour
Back view of 500 mL Kiyo UVC Bottle in Blue Hour
Close-up view of lid and strap of 500 mL Kiyo UVC Bottle in Blue Hour
Close-up view of button of 500 mL Kiyo UVC Bottle in Blue Hour
View of UVC light and lid of 500 mL Kiyo UVC Bottle in Blue Hour
Front view of 500 mL Kiyo UVC Bottle in Castle Rock
Back view of 500 mL Kiyo UVC Bottle in Castle Rock
Close-up view of lid and strap of 500 mL Kiyo UVC Bottle in Castle Rock
Close-up view of button of 500 mL Kiyo UVC Bottle in Castle Rock
View of UVC light and lid of 500 mL Kiyo UVC Bottle in Castle Rock
Front view of 500 mL Kiyo UVC Bottle in Graphite
Back view of 500 mL Kiyo UVC Bottle in Graphite
Close-up view of lid and strap of 500 mL Kiyo UVC Bottle in Graphite
Close-up view of button of 500 mL Kiyo UVC Bottle in Graphite
View of UVC light and lid of 500 mL Kiyo UVC Bottle in Graphite
Front view of 750 mL Kiyo UVC Bottle in Black
Back view of 750 mL Kiyo UVC Bottle in Black
Close-up view of lid and strap of 750 mL Kiyo UVC Bottle in Black
Close-up view of button of 750 mL Kiyo UVC Bottle in Black
View of UVC light and lid of 750 mL Kiyo UVC Bottle in Black
Front view of 750 mL Kiyo UVC Bottle in Blue Hour
Back view of 750 mL Kiyo UVC Bottle in Blue Hour
Close-up view of lid and strap of 750 mL Kiyo UVC Bottle in Blue Hour
Close-up view of button of 750 mL Kiyo UVC Bottle in Blue Hour
View of UVC light and lid of 750 mL Kiyo UVC Bottle in Blue Hour
Front view of 750 mL Kiyo UVC Bottle in Castle Rock
Back view of 750 mL Kiyo UVC Bottle in Castle Rock
Close-up view of lid and strap of 750 mL Kiyo UVC Bottle in Castle Rock
Close-up view of button of 750 mL Kiyo UVC Bottle in Castle Rock
View of UVC light and lid of 750 mL Kiyo UVC Bottle in Castle Rock
Front view of 750 mL Kiyo UVC Bottle in Graphite
Back view of 750 mL Kiyo UVC Bottle in Graphite
Close-up view of lid and strap of 750 mL Kiyo UVC Bottle in Graphite
Close-up view of button of 750 mL Kiyo UVC Bottle in Graphite
View of UVC light and lid of 750 mL Kiyo UVC Bottle in Graphite
Front view of 500 mL Kiyo UVC Bottle in Carbon Black
Front view of 500 mL Kiyo UVC Bottle in Castle Rock
Front view of 500 mL Kiyo UVC Bottle in Blue Hour
Front view of 500 mL Kiyo UVC Bottle in Graphite
Front view of 750 mL Kiyo UVC Bottle in Carbon Black
Front view of 750 mL Kiyo UVC Bottle in Castle Rock
Front view of 750 mL Kiyo UVC Bottle in Blue Hour
Front view of 750 mL Kiyo UVC Bottle in Graphite
Front view of six Kiyo UVC Water Bottles
Close up view of Kiyo UVC Water bottles Castle Rock and Graphite

Kiyo UVC Water Bottle

Rated 4.8 out of 5
Based on 121 reviews
$80
500 mL
Castle Rock

Buy 2 and save 10% / Buy 3+ and save 20%

  • Description
  • Features
  • Specs
  • Warranty & Returns

Kiyo means ‘purity’, and that’s exactly what we want in our drinking water.

We created the Kiyo water bottle to give you a sustainable and simple way to access clean, purified drinking water wherever you go – all in a beautifully designed stainless steel bottle. With just a press of a button, the Kiyo’s UVC technology purifies your drinking water, eradicating up to 99.99% of bacteria.

It’s time to break up with wasteful plastic water bottles and smelly old flasks. With Kiyo, you can have pristine, clean water at your fingertips – anywhere and anytime.

  • Portable and packable
  • Powerful UVC purification neutralizes up to 99.99% of bacteria from your water bottle in Deep Clean mode
  • Two purification modes – Quick Clean (60 seconds) and Deep Clean (3 minutes)
  • Battery lasts ~1 month with normal use
  • Convenient recharging by USB-C (charging cable included)
  • Double wall vacuum insulation keeps beverages hot for 12 hours and cold for 24 hours
  • Silicone base for a soft and secure placement
  • No warm-up time required
  • Mercury-free
  • Eco-friendly, sustainable alternative to plastic bottles
  • Lightweight and durable
  • Includes Kiyo Loop
  • Patent-pending design

Read included instructions carefully before use.

500 mL

  • Voltage/Current: 5 V / 350 mA
  • Bottle capacity: 500 mL / 17 oz
  • Power: 0.5 W
  • Product Weight: 310 g
  • Interface: USB-C
  • Optical power: 10 mW
  • Battery capacity: 400 mAh
  • Charging time: About 3 hours
  • UVC wavelength: 270–280 nm
  • Materials: PP, Silicone, Stainless Steel, Silex Glass
  • Product size: 71 × 92 × 231 mm

750 mL

  • Voltage/Current: 5 V / 350 mA
  • Bottle capacity: 750 mL / 25 oz
  • Power: 0.5 W
  • Product Weight: 405 g
  • Interface: USB-C
  • Optical power: 10 mW
  • Battery capacity: 400 mAh
  • Charging time: About 3 hours
  • UVC wavelength: 270–280 nm
  • Materials: PP, Silicone, Stainless Steel, Silex Glass
  • Product size: 78 × 100 × 257 mm

Our Kiyo UVC Water Bottles are backed by a 2-year limited warranty.

For shipping info, see our FAQ.

Description

Kiyo means ‘purity’, and that’s exactly what we want in our drinking water.

We created the Kiyo water bottle to give you a sustainable and simple way to access clean, purified drinking water wherever you go – all in a beautifully designed stainless steel bottle. With just a press of a button, the Kiyo’s UVC technology purifies your drinking water, eradicating up to 99.99% of bacteria.

It’s time to break up with wasteful plastic water bottles and smelly old flasks. With Kiyo, you can have pristine, clean water at your fingertips – anywhere and anytime.

Features

  • Portable and packable
  • Powerful UVC purification neutralizes up to 99.99% of bacteria from your water bottle in Deep Clean mode
  • Two purification modes – Quick Clean (60 seconds) and Deep Clean (3 minutes)
  • Battery lasts ~1 month with normal use
  • Convenient recharging by USB-C (charging cable included)
  • Double wall vacuum insulation keeps beverages hot for 12 hours and cold for 24 hours
  • Silicone base for a soft and secure placement
  • No warm-up time required
  • Mercury-free
  • Eco-friendly, sustainable alternative to plastic bottles
  • Lightweight and durable
  • Includes Kiyo Loop
  • Patent-pending design

Read included instructions carefully before use.

Specs

500 mL

  • Voltage/Current: 5 V / 350 mA
  • Bottle capacity: 500 mL / 17 oz
  • Power: 0.5 W
  • Product Weight: 310 g
  • Interface: USB-C
  • Optical power: 10 mW
  • Battery capacity: 400 mAh
  • Charging time: About 3 hours
  • UVC wavelength: 270–280 nm
  • Materials: PP, Silicone, Stainless Steel, Silex Glass
  • Product size: 71 × 92 × 231 mm

750 mL

  • Voltage/Current: 5 V / 350 mA
  • Bottle capacity: 750 mL / 25 oz
  • Power: 0.5 W
  • Product Weight: 405 g
  • Interface: USB-C
  • Optical power: 10 mW
  • Battery capacity: 400 mAh
  • Charging time: About 3 hours
  • UVC wavelength: 270–280 nm
  • Materials: PP, Silicone, Stainless Steel, Silex Glass
  • Product size: 78 × 100 × 257 mm

Warranty & Returns

Our Kiyo UVC Water Bottles are backed by a 2-year limited warranty.

For shipping info, see our FAQ.

Pure water, fast

The Kiyo water bottle purifies water in as little as 60 seconds, and neutralizes up to 99.99% of bacteria in Deep Clean.

Sustainable

One Kiyo can eliminate the need for 100 plastic bottles a year, making it good for the planet (and your wallet too). 

Travel-ready

Portable and packable, the Kiyo water bottle gives you easy access to purified water, no matter where you go.

Pure water at your fingertips

Simply fill up your Kiyo bottle with water from a potable source, screw on the cap, and press the button to activate the UVC purification technology –  once for Quick Clean and twice for Deep Clean. Within minutes, you’ll have access to clean, pure drinking water.

Behind the design

Kiyo’s soft, understated silhouette takes inspiration from handmade artisan pottery, while its gentle curves and stone-like, speckled texture recall smooth pebbles from a riverbed – their edges softened over time by the flow of rushing water.

Likewise, our days flow in continuous motion, quietly shaping our life’s journey with each passing moment. Finding beauty in life’s transient nature is called mono no aware in Japanese, and we’ve inscribed these words at the bottom of each Kiyo as a reminder – for all of us – to slow down and savour the present.

Customer reviews
Kiyo UVC Water Bottle

average rating 4.8 out of 5
Based on 121 reviews
  • 5 Stars
    95 Reviews
  • 4 Stars
    24 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
98% of reviewers would recommend this product to a friend
121 Reviews
Reviewed by Peng Y.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

nice product!

Neat little products. Took me a while to figure out how it actually works. So let me give you a heads-up. Touch it and it will turn blue for 1min purify. Then: You have to tap it 2x for 3mins purify in green light.

Again Touch it to turn it on. It will turn blue then Tap 2x times for a deep purify.

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Reviewed by Vanessa
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

BEST water bottle!

I purchased this water bottle because regardless of the way I use other reusable water bottles, they all develop a mildew smell within a day or two. This one was more expensive than the other ones I've owned (Swell, Hydroflask, etc) but it's so worth it, because I'll actually use it. Even after a week of constant use this bottle hasn't developed ANY odor AT ALL. The technology in this water bottle really works (I was skeptical). I usually use the blue setting throughout the day and green anytime I refill. I absolutely recommend this to anyone because I have yet to find another water bottle that is able to stay clean and have no scent whatsoever - it's also lightweight so it isn't a pain to bring around. I plan to gift these in the coming year because I love it so much!!!

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Reviewed by Charlotte W., from United States
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Love this bottle

Will be bringing this bottle with me everywhere, being able to sterilize everything from germs to moulds and bacteria is amazing

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Reviewed by Tim W.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great customer service

I did use the bottles on a trip to Belize. One of the bottles did quit working toward the end of the trip, but this review is more of a review for great customer service. I contacted Monos about the problem bottle and they made good on the warranty. I have no reservations about future purchases from Monos. Thanks for quality products and honoring your warranty. That’s commendable in today’s world!🤗

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Reviewed by Andrea L.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted

Glad I got it on sale

I like having a water bottle that can also UV sterilize the water. It's very convenient, and I love the color and pattern of the bottle. I like that the bottom has silicone on it so it doesn't bang against the table when you set it down. Overall a nice product. Cons: I'm not a fan of capacitive buttons in general. Every time your hand brushes the lid, it starts the sterilizing cycle. I feel like it might drain the battery more because every time I reach for it, it turns on. I also don't like that the silicone loop does not match the color of the bottle. It's an off-shade of blue. For a luxury product like this, I'd rather have a contrasting dark grey loop or something, instead of this poorly color-matched thing. I'm glad that I got it on sale for Black Friday and with a gift card from my Monos points, which came out to 20-something dollars. Definitely wouldn't buy this for full price.

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