The Micro Sediment StageÂ
Before any chemical filtration happens, water has to pass through a physical barrier. That's the sediment stage.
What it traps: rust flakes from ageing pipework, sand, silt, and general particulate matter that's extremely common in Indian apartment plumbing, especially in buildings that store water in overhead tanks, where sediment settles and gets pushed through the line every time the pump runs.
How it works: a fine mesh or PP (polypropylene) cotton layer physically catches particles as water passes through, the same way a coffee filter catches grounds, it's mechanical filtration, not chemistry. Nothing gets neutralized here; it just gets stopped before it reaches you.
The Rust Removal Shower Filter is built around sediment and rust capture specifically. If your water runs cloudy, has visible rust tint, or leaves orange-brown staining on your tiles and grout, this is the filtration stage doing the most work for you.
ACF (Activated Carbon Fiber)
Sediment filtration handles what you can see. ACF handles what you can smell and feel.
What it removes: free chlorine, chloramine, and organic compounds; the chemicals municipal water suppliers add for disinfection, which are essential for safety but the residuals continue reacting with your skin and hair long after they've left the treatment plant.
How it works: activated carbon has an enormous internal surface area, riddled with microscopic pores. As water passes through, chlorine and organic molecules bind to that surface through a process called adsorption, they stick to the carbon rather than passing through with the water. This is different from sediment filtration: it's a chemical capture process, not a mechanical strainer.
The ACF Shower Filter is built for households whose main complaint is chlorine, that sharp chemical smell, tight-feeling skin after a shower, hair that feels stripped.
Vitamin C Filtration
What it does: Vitamin C — ascorbic acid — is a well-documented dechlorinating agent. Unlike carbon, which adsorbs chlorine gradually as water flows past it, Vitamin C reacts with chlorine directly and neutralizes it on contact. It's fast-acting and works on both free and combined chlorine, which is part of why it's also used in professional dechlorination applications like pool water treatment.
Still not sure which one you have, or which refill cartridge matches your existing filter? Use the NEMO filter finderÂ