You're showering in chlorine.
It lands on your skin and hangs in the steam you breathe. Brook screws onto a standard shower arm and filters it out before either happens.
The part nobody mentions
Chlorine is great at cleaning water. That’s why cities use it.
It’s also something you don’t need on your skin — or in the steam — every morning. Hot showers make that worse: more contact, more steam, same small bathroom. Brook catches it at the shower arm.
- You breathe it Heat helps chlorine leave the water and hang in the air. A long shower can mean more contact than a glass of water.
- It hits your skin and hair Chlorine is drying. That’s why hair can feel brittle and skin can feel tight after you wash — even when the products are good. Do that every day for years and you’re speeding up the dry, dull look people usually blame on getting older.
- You can usually smell it If the bathroom smells a little like a pool when you’re done, that’s a clue. Chlorine doesn’t vanish just because you can’t see it.
Fix the water before it reaches you. Easier than trying to undo it afterward.
What changes
Cleaner water for the shower you already take.
Less chlorine on you
Brook cuts chlorine in the stream, so you’re not soaking in — and breathing — more of it than you have to.
Softer-feeling hair and skin
A cleaner rinse. Less of that fried-hair, tight-skin feeling a lot of people blame on their shampoo — and less daily dry-out that adds up on your face over time.
On in about a minute
Screws onto a standard shower arm. No plumber. No app. No batteries.
Right now
One shower — or the whole house.
Pick 1, 2, or 3 filters. Add Refill Club and we match cartridge deliveries to that count every 4 months. Launch pricing while this first run lasts. 30 days to decide.
127 left at launch pricing · 1 filter · Ships in 2–4 days
- Fits standard US shower arms
- On in about a minute
- Keeps your pressure feeling normal
- 30 days to make up your mind
Pick 1, 2, or 3 filters for the showers in your home. Refill Club matches that count automatically.
If you’re curious
A couple short reads.
FAQ
Questions we get a lot
Does this actually help with chlorine I breathe?
Hot showers put more chlorine into the air and onto your skin than most people realize. Brook filters the water before it hits you. It’s a shower filter — not an air purifier, and we’re not going to pretend otherwise.
Will my hair and skin feel different?
A lot of people notice softer hair and skin that doesn’t feel tight after they rinse. Not everyone does — which is why you get 30 days to decide.
Does it soften hard water?
No. Hard water is minerals. Brook is for chlorine and that faint pool smell — not for scale.
Will it kill my water pressure?
It’s built for high flow. Give it a quick flush the first time you put it on, then shower like usual.
How long does a cartridge last?
Usually three to six months, depending on your water and how often you shower. Refill Club sends a new one every four months so you don’t have to remember.
