Haier Group, founded in Qingdao in 1984, is the world's No. 1 brand of large home appliances. In 2012, Haier topped the list with a brand value of 96.28 billion yuan, and has been ranked as China's most valuable brand for 11 consecutive years, and has also won honors such as "China Brand Building Contribution Award" and "Top 10 Most Admired Chinese Company". Haier's car air purifier has a compact design and takes up little space in the car. The use of large-density circular composite filter increases more filtration area and dust holding capacity, and the purification capacity is strong. The price is moderate, 295 yuan, and it is very cheap to replace the filter, which can be solved at 58 yuan, with a high cost performance.