You’ve seen these guys at the store—they sit on your counter like a shy robot. You pour tap water in the top, and it drips down through a carbon filter. This little brick of charcoal grabs chlorine, bad tastes, and some sediments.
It’s so easy that your grandma could do it in her sleep. The downside? It’s slow. You have to wait a few minutes to fill a water bottle. It also won’t remove things like fluoride or heavy metals, but for everyday drinking, it’s a wonderful upgrade.
