Building material oxygen index tester

The utility model relates to a building material oxygen index tester which comprises an instrument cabinet, and an exhaust funnel is arranged at the top of the instrument cabinet; a base for ignition is arranged in the instrument cabinet, and two movable doors are arranged on one side of the instrument cabinet; the combustion cylinder is arranged on the base; the mounting barrel is connected into the exhaust barrel in a sliding manner; the filter cotton is fixedly connected into the mounting cylinder, and the filter cotton covers the cross section area of the mounting cylinder; and the filter screen is fixedly connected to the interior of the mounting cylinder and located at the position above the filter cotton, and the air purification device has the effect of reducing air pollution during air emission. 本申请涉及一种建材氧指数测定仪，其包括仪器柜,所述仪器柜顶部设置有排气筒；所述仪器柜内设置有用于点火的基座，所述仪器柜一侧设置有两个活动门；燃烧筒，设置于所述基座上；安装筒，滑动连接于所述排气筒内；过滤棉，固定连接于所述安装筒内，所述过滤棉覆盖所述安装筒横截面积设置；过滤网，固定连接于所述安装筒内，位于所述过滤棉上方位置处，本申请具有减少气体排放时对空气的污染性的效果。