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Point-of-use drinking water filtration was studied as a possible drinking water treatment alternative in Nepal. Three filter/purifier systems, Nepalese ceramic candle filter, Indian ceramic candle filter and IPI purifier, were tested for turbidity and microbial removal efficiencies. The test results indicated that the filter systems had very high turbidity removal efficiencies. All systems reduced the turbidity level of water to less than 1 NTU. However, the filtration processes themselves were observed to be not adequate in terms of removing microbial contaminants. IPI purifier when used together with chlorine disinfection eliminated all microbial contamination, however, in all other cases the treated water was still microbiologically contaminated. In order to improve the microbial removal efficiency of Nepalese ceramic candle filter, colloidal silver coating was applied onto the ceramic filter candle. The experiments were conducted for filter candles with several concentrations of silver. It was observed that the filters with more than 10mg of silver removed all hydrogen sulfide producing bacteria. However, complet