Purification tablets are small, portable tablets designed to make water safe for drinking. They typically contain chemicals like sodium dichloroisocyanurate or iodine, which kill harmful bacteria, viruses, and parasites in contaminated water. These tablets are especially useful for outdoor activities, travel, or emergency situations where clean water is not readily available. To use purification tablets, simply add the recommended number of tablets to a specified amount of water and wait for the indicated time before drinking. This process ensures that the water is free from pathogens, making it safer for consumption. Always follow the instructions on the packaging for effective results.