Since 1992, KNJ is without a doubt one of the most experienced supplier of Air Pollution equipments in this field as specialist. KNJ have many years of experience in manufacturing supplying, installing, commissioning, testing (sampling), servicing and maintaining source sampling system, continuous emission monitoring systems, ambient/ indoor air quality sampling and monitoring systems, industrial Hygiene in Korea and Asian temitory. Owing to our best experience KNJ are respected by central and local Government, Institutes, University and Private Industry Authority concerned with the sampling and monitoring of air pollutants. Our head office is located in Seoul Korea and we have branch office in Uiwang and Daesan. And also KNJ have a plan to get DeaDuk Scientific Park which will be KNJ calibration center in the near future. The resources KNJ has to offer are extensive and can be described as below. KNJ has extensive systems design experience having supplied source sampling equipments, continuous emission monitoring systems (CEM-Dust, O2, CO, NO, SO2, Hc, F/T, etc.) and ambient, indoor air quality sampling and monitoring (AQ MS-O3, CO, SO2, Nox, PM10 etc.) to customers throughout Korea. KNJ has especially top ranking sales record for Source Sampling Equipments such as Stack Sampler(US EPA Method 5/17/23), Gas sampler(US EPA Method 6, 7, 18, 26 and VOST) according to Korea Air Pollution Testing method, market share 85% over in Korea as leading company. KNJ`s for the first time, trained Dioxin sampling from an Incinerator, Ambient, Indoor and any other back ground to Korea EPA in 1996 year. And then Korea EPA have regulated Korea Dioxin Testing Method at 1997. KNJ have a good relationship with the customers of Industrial Hygiene and have a great experience to sell Industrial hygiene products, such as toxic gas analyzers, cascade Impactor and portable equipments. KNJ has particularly experienced US-EPA Method 21 Leak detection system for VOC control at Oil refinery company like Texaco, BP etc with LDAR/FEMS program and engineering for the first time in Korea. KNJ is investing VOC/Odor business in Korea have sold 11units of Portable GC/MS to Korea EPA for VOC and Emergency response of Chemical terror or accident which has very expensive. KNJ is always at your position.