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WebDust particles can either rest loosely or can be more or less stuck to optical surfaces. Other dirt is either water-soluble or may only be completely removed using organic solvents. However, ... They can be cleaned well with a very lightly moistened microfiber cloth. Loose dust and other dirt can be removed using a brush of soft hair used ... WebFeb 24, 2024 · Fill a pitcher or jug with water. Add four drops (1/16 teaspoon) of bleach per quart (liter) of water. Shake or stir the mixture. Let the mixture sit for 30 minutes. 3. Purify with iodine. Plain liquid iodine can also be used to kill pathogens in water, but many people are turned off by the taste. small owl pictures
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