Don’t knock a good carbon filter. It’s like that friend who’s not the strongest, but they’ll carry your groceries anyway. Activated carbon is great at trapping organic compounds and some heavy metals, but it’s hit or miss for radiation.
Some carbon filters can reduce radon levels because radon is a gas that gets absorbed into the carbon. But for solid radioactive particles? It’s like trying to catch a bullet with a butterfly net—noble, but probably not your best bet.
Pair a carbon filter before a reverse osmosis system for the dream team. It’s like putting on socks before shoes—technically optional, but much more comfortable.
Deionization: The Science Lab Move
This one sounds fancier than it is. Deionization (DI) uses special resins that swap radioactive ions for harmless ones. It’s like a chemical handshake that says, “Hey, you’re radioactive, I’ll take that and give you a glass of water instead.”
It’s incredibly effective—like 99.9% effective—but the resins get exhausted fast and need replacing. You’ll know it’s time to swap when your water starts tasting like a laboratory experiment.
DI is usually used in combination with RO for the really paranoid folks. If you ever see a YouTuber testing their water with a Geiger counter and laughing, they probably have a DI system.
