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.
From $47 · Ships in 2–4 days
Good for water. Rough on you.
Chlorine is great at cleaning water. That’s why cities use it.
You just don’t need it on your skin — or in the steam you breathe — every morning.
Without a filter
-
You breathe it Heat pulls chlorine into the air. A long hot shower can mean more contact than a glass of water.
-
It hits skin and hair Chlorine is drying — tight skin, brittle hair, even when your products are good.
-
You can smell it If the bathroom smells a little like a pool, that’s the clue.
With Brook
-
Less chlorine in the air Brook cuts chlorine at the shower arm — before heat pulls it into the steam you breathe.
-
Softer-feeling rinse Cleaner water on skin and hair — less of that fried, tight feeling after you wash.
-
Less of that pool smell Filter chlorine at the shower arm so the bathroom doesn’t have to smell like a pool when you’re done.
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.
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.
Why dermatologists recommend using shower filters
Chlorine and water quality show up in dermatology conversations about dryness and sensitive skin. Here are the sources — without claiming...
ReadYour shampoo can’t fix the water
Dry hair and tight skin after a shower often get blamed on products. Sometimes the rinse is the problem.
ReadFAQ
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.
