Yes, carbon filters are effective at removing chloramine from water. Chloramine is a chemical compound that is commonly used as a disinfectant in water treatment plants.
Carbon filters are effective at removing a wide range of contaminants from water, including chlorine and chloramine. These filters work by using a process called adsorption, where contaminants in the water are attracted to the surface of the carbon filter and stick to it. This allows the filtered water to be free of contaminants and safe to drink.
The average carbon filter will not reduce or remove traces of chloramine. Some carbon filters will only reduce the chloramine content by 50%. Some filters contain charcoal, which will not reduce the chemical content. The filters will simply remove the chlorine smell and slightly improve the taste.
A multi-level water filter can remove chloramine by a high percentage, although the better purifiers will include vitamin C to increase the percentage of reduction to nearly 99%.