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Why are doorknobs made of brass?

Even though the doorknobs come in various shapes, sizes and finishes, the best doorknob for you is the one that suits your personal needs and taste. However, when you wish to decide on the best one for your needs then it is best to choose between brass, chrome, etc. The reason that copper or its alloys like brass are so popular is that the same is self-disinfectant. As a result, the surfaces that are touched frequently like these can harbour germs. Although, the brass doorknobs can have an oligodynamic effect that kills bacteria and germs instantly. As a result of the same, the brass effectively helps to sterilize the bacteria that may germinate on these handles for the best results.