See what's in my water
The omomi pitcher, glass with a coral filter housing and cork lid, on a kitchen counter in morning light

Your water finalLy has its own filter

omomiintelligent by nature

omomi analyzes 5 years of public data for your address, shows you exactly what your tap contains, and builds your filter for what's actually there.

See what's in my water

Labels, ingredients, additives, you read them all. What about your tap water?

There’s no single label for tap water: its composition changes from one water system to the next. Everyone’s water is different, so why are all filters the same?

oMomi was born from this contradictiOn

driNkable isn’t the same as Good.

See what's in my water

EWG Tap Water Database, omomi analysis of 43,570 US water systems. How we set omomi thresholds →

  • 52,051,734

    water test results analyzed and counting

  • 44,643

    water systems mapped

  • 5years

    of historical data ingested

  • 151

    substances tracked

Your household has its water. and noW your water has its filter.

See what's in my water
The omomi pitcher on a tiled breakfast table with croissants, oranges and a glass of water
  1. 1

    My household

    I enter my address and answer a few quick questions. omomi finds my water system data and estimates our water usage.

  2. 2

    My water

    omomi analyzes 5 years of public water-quality data and shows me exactly what's in my tap.

  3. 3

    My filter

    My omomi filter is built for what's actually in my water. A new one arrives right when I need it.*

    *Timing calculated using contaminant levels in my water, filter performance data, and my household's estimated consumption.

the onLy pitcherthat kNowswheRe you live

1 of 3

miaMi

Share your address. See what’s in your water, and the filter it needs.

MIAMI
main overview

Contaminants above the recommended health thresholds are shown with their measured levels.

How we set these thresholds →
source
groundwater

Disinfection byproducts

HAA528.99 ppbLimit 0.1 ppb
Trihalomethanes32.03 ppbLimit 0.15 ppb
NitratesBelow thresholds

Heavy Metals

Arsenic0.50 ppbLimit 0.004 ppb
Hexavalent chromium0.09 ppbLimit 0.02 ppb

PFAS

PFOS12.0 pptLimit 0.3 ppt
PFOA4.64 pptLimit 0.09 ppt
PFHxS1.77 pptLimit 0.001 ppt
PesticidesBelow thresholds
Industrial PollutantsBelow thresholds
A pink and white building in Miami against a blue sky, palm trees below

2 of 3

cinCinnati

Share your address. See what’s in your water, and the filter it needs.

CINCINNATI
main overview

Contaminants above the recommended health thresholds are shown with their measured levels.

How we set these thresholds →
source
surface water

Disinfection byproducts

HAA58.17 ppbLimit 0.1 ppb
Trihalomethanes38.07 ppbLimit 0.15 ppb
Nitrates758 ppbLimit 140 ppb

Heavy Metals

Arsenic0.23 ppbLimit 0.004 ppb
Hexavalent chromium0.12 ppbLimit 0.02 ppb

PFAS

PFOS0.74 pptLimit 0.3 ppt
PesticidesBelow thresholds

Industrial Pollutants

1,4-Dioxane0.40 ppbLimit 0.35 ppb
The Roebling Suspension Bridge over the Ohio River, with the Cincinnati skyline behind

3 of 3

cedar Rapids

Share your address. See what’s in your water, and the filter it needs.

CEDAR RAPIDS
main overview

Contaminants above the recommended health thresholds are shown with their measured levels.

How we set these thresholds →
source
groundwater

Disinfection byproducts

HAA94.76 ppbLimit 0.06 ppb
Trihalomethanes1.63 ppbLimit 0.15 ppb
Nitrates2,410 ppbLimit 140 ppb

Heavy Metals

Arsenic0.53 ppbLimit 0.004 ppb
Hexavalent chromium1.64 ppbLimit 0.02 ppb
PFASNot detected

Pesticides

Metolachlor0.20 ppbLimit 0.1 ppb
Industrial PollutantsBelow thresholds
A red-brick Victorian mansion in Cedar Rapids, Iowa, behind a green lawn

omomi

intelligent by nature

too beaUtifulFor the fridge.

even if it's engineered to fit there perfectly

The omomi pitcher seen from three-quarters
  1. 01Glass pitcherBorosilicate glass, made to handle bumps and varying temperatures.
  2. 02Refillable stainless steel filterFood grade. You only replace the refill, never the filter.
  3. 03A refill adapted to your waterIts composition is optimized for your water system’s data.
  4. 04Cork lidNatural, and to be honest we just like the texture.
  5. 05Silicone sealsFood-grade silicone joints, engineered to never be in contact with your water.

omomi

intelligent by nature

The omomi pitcher, filter visible through the glass
  1. 01Glass pitcherBorosilicate glass, made to handle bumps and varying temperatures.
  2. 02Refillable stainless steel filterFood grade. You only replace the refill, never the filter.
  3. 03A refill adapted to your waterIts composition is optimized for your water system’s data.
  4. 04Cork lidNatural, and to be honest we just like the texture.
  5. 05Silicone sealsFood-grade silicone joints, engineered to never be in contact with your water.
The omomi pitcher and a glass of water on a kitchen counter, someone walking past in the background
omomiintelligent by nature

Free. No payment, no commitment.

The smartest device in your kitchen has no screen

what’s in yoUr filter

Several different materials, each with a specific job. Your refill combines the ones your water needs. The mix and their ratios are tuned to your water system’s data.

Line drawing of the omomi filter: coral housing above a stainless steel mesh basket holding the refill
04Coconut shell activated carbonEfficient for small molecules like chlorine, volatile organic compounds (VOCs), and trihalomethanes.
  1. 01PFAS-specific mediaMesoporous activated carbons or specialty resins formulated to reduce PFAS.
  2. 02Cation exchange resinTargets positively charged contaminants, such as heavy metals (lead, copper, mercury, nickel…) and hardness.
  3. 03Anion exchange resinTargets negatively charged contaminants such as nitrates, perchlorates, and arsenic.
  4. 04Coconut shell activated carbonEfficient for small molecules like chlorine, volatile organic compounds (VOCs), and trihalomethanes.
  5. 05Extruded wood-based activated carbonEffective in waters with contaminants of varying sizes thanks to its micro and mesoporous structures.

the filter tHat thinKs for you

See what's in my water
  • Hands holding the coral omomi Starter Set box

    Refills delivered to your door

    They arrive when it’s time to change, no store run needed.

  • A phone on a wireless charger on a wooden coffee table

    A text on the day

    We let you know by text when it’s time to swap.

  • Someone sitting on a bed holding a glass of water

    A filter that adapts if your water changes

    We update the data every month and adjust your filter’s composition when needed.

generic filtErs are designed for theoretical Water

Not what's actually in yours.

categoriesomomigeneric pitcher
01A tool that shows exactly what’s in your waterYesNo
02A filter formulated for your waterYesNo
03Refills timed to your household’s usageYesNo
04No plastic in contact with your waterYesNo
05A reusable filterYesNo
06Filtration that adapts if your water changesYesNo
The omomi glass pitcher and coral filter housing on a stone counter

it alL
stArted witha reluctantlY purchased pitCher.

Maxime Hoppenot, omomi's founder, smiling

We kept hearing about PFAS, pesticides, and more in tap water, but each article contradicted the last. Was our water affected? No idea.

The filter I bought was plastic, generic, and unconvincing. When researching alternatives, I quickly realized: water differs from one water system to the next.So why doesn't the filter? omomi was born from that confusion: we show you what's in your water, filter exactly that, deliver replacements on time so you never have to think about it, and put it all in a pitcher worthy of your table.

Maxime Hoppenotomomi's founder

beFore you
diVe in

So, what’s in my water?

Share your address. See what’s in your water, and the filter it needs.

Not ready to share your address? Just drop your name and email and we'll tell you when omomi launches.

We use your address only to look up your water.

Pour decisions start here

Be the first to know when we launch and secure your presale pricing.

Free. No payment, no commitment.

So, what’s in my water?

Share your address. See what’s in your water, and the filter it needs.

We use your address only to look up your water.