WATER PURIFIER

PROBLEM TO BE SOLVED: To provide a water purifier which has a high performance in purifying raw water and can maintain the high performance over an extended period of time.SOLUTION: In the water purifier 40 wherein a purification material is contained within a case 62 provided with a raw water inlet 76 and a purified water outlet 78, raw water flowing in from the raw water inlet 76 is passed through a purification material to be purified, and the purified water is allowed to flow out from the purified water outlet 78. The purification material is formed by arranging in order, from the upstream side to the downstream side of the flow of the raw water flowing from the raw water inlet 76, a first activated carbon layer 88, a hollow fiber membrane filter 130, and a second activated carbon layer 132. The raw water is purified by being passed through the first activated carbon layer 88, the hollow fiber membrane filter 130, and the second activated carbon layer 132 in this order.