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Manufacturers often use the term βdust resistantβ or βwaterproofβ to describe their productsβ robustness. But such statements donβt give proper justification for the extent of protection. So, to specify and strengthen such claims, they use IP ratings to define the resistance level of their products. The first number in the rating is from 0-6 and measures the protection from solids, 6 being the best protection). The second number is the protection against liquids, usually measured 0 to 8 (higher number the better).