Changchun Evan Purification Equipment Co.,Ltd was prepared in Feb,2012 and was founded in July 2016. We focus on the research and development, production and sales of ozone products. Our company strictly implements the ISO9001 quality management system. As an enterprise dedicated to environmental governance (including water treatment and air treatment applications), we have ceramic ozone generators, tube ozone generators, air-cooled ozone generators and water-cooled ozone generators. The ozone output span varies from 300mg/hr to 350g/hr.There are many styles of lithium molecular sieve oxygen generators, from 3L/min to 20L/min.Our R&D personnel exceeds 20% of the total number of employees to ensure that we can continue to explore R&D according to market needs to better meet customer needs.