活中，如果衣服或者床单上染上了血渍怎么办呢？一般刚染上的血渍还是比较容易清洗掉的，假如是之前的旧血渍该如何清洗掉呢？今天小编就来教大家一招，不管衣服上还是床单上，再顽固的血渍， 用这招一洗就掉，超实用！
The most effective method is to use hydrogen peroxide， an oxidizing agent that removes old blood stains via a chemical reaction that breaks down the discolouration. While it’s safe to use， hydrogen peroxide can cause discolouration to some fabrics and can irritate skin， so always wear gloves， test on a hidden area first and check the care label to make sure it’s suitable.
