The 2022 Hskyhan Alkaline Filter has been fully upgraded for optimal performance and water filtration is more efficient than before. Use filtered tap water for: cooking, coffee, tea and juices, ice cubes, watering pets and so on, to enjoy the purest tasting water. For example, when drinking tea or coffee, the aroma of tea and coffee comes out more easily. Instructions: 1. Open the package, take out the filter, and rinse it clean. 2. Put the filter into the pitcher and press it firmly. 3, As the first 3 cans of filtered water may contain black granular toner, please use it for watering plants or just discard it. Precautions: 1. Do not use hot water. When the water temperature exceeds 100.4°F (38°C), the use effect would be affected. 2. Please drink the filtered water within 6 hours or put it in the refrigerator, otherwise taste of the filtered water would turn bad. 3.Hskyhan alkaline filter provides clean drinking water while adding beneficial minerals and small amounts of trace elements (calcium, magnesium, potassium, sodium...) to the water, which are mistaken for TDS. Therefore, your tested TDS value will be high. But don't worry! If you want healthy and delicious life water, please use our products with confidence.