One pass break through test. With a 120mm diameter air duct, this breakthrough testing apparatus is capable of evaluating the efficiency and service life for flat media. Tests are conducted with 20~50ppm of up stream concentration. The gases frequently tested in-house include: Acetaldehyde Ammonia H2S SO2 NO2 DMS Toluene N-butane CTC
Closed circulation test: A one cubic meter test chamber is used to test gas removal rate for filters, or entire room air cleaner. Gases tested can be single gases as listed above, or mix gas such as cigarette smoke.