Nantong Henka Environment Solutions Co.,Ltd was established on 2004.Henka is one of most famous and professional air filter manufacturers for air purifier& air cleaner. Our air filter include HEPA air filter , VOC removing air filter ,Formaldehyde removing air filter ,Activated Carbon air filter, Odor removing air filter and HVAC air filter. Henka is designated air filter supplier for the most famous brands of air purifier&air cleaner in North America market and China market .Henka is not only provide the air filter to you ,but also provide the professional air purification solutions. Henka is located in Haimen city ,Jiangsu province , close to Shanghai city for 120 kilometers .Henka has the advanced test equipment and strict test procedure for raw material ,developing and manufacture, guarantee each filter meet the quality standard ,We have the efficiency&air resistance test system for air filter media and air filter , noise test lab ,30 M3 test room for formaldehyde &VOC removing ,CTC test lab for activated carbon , penetrating life testing for formaldehyde catalyst ,CADR test room based on ANSI/AHAM AC-12006. We have the ISO 9001:2008 quality system . Henka design the air filter based on the sample ,drawing and idea from our customer ,optimizing the air filter structure from the test data ,we provide the best air filter and air purification solutions to our customer .