Chalcogenide glasses are primarily composed of elements from group VI of the periodic table, such as sulfur, selenium, and tellurium, and may include other non-oxide elements like germanium and arsenic. These glasses exhibit properties such as high refractive index (2–3.5), low phonon energy (<350 cm?1), and tunable performance. As the most popular chalcogenide glasses, As-Se and As-S glasses are widely used in the fields of mid- and far-infrared imaging, supercontinuum generation, infrared laser power transmission, etc. However, the soluble impurity absorption and insoluble particle impurities inside the glass lead to a lot of trouble. In particular, particle-induced scattering is one of the key factors for the decrease of the glass transmittance. Such particles may be sourced from various conditions, such as the original presence of raw materials and introduction during glass preparation. So, it is urgent to find the real source and remove these impurities. For example, Nguyen et al. prepared As2Se3 fiber with the lowest loss below 1 dB/m, but found that there are a large number of submicron particles-Al2SiO3-inside the fiber, which enhances the scattering loss of the glass. To address this challenge, this work investigated the optical properties of glass by adding deoxidizers and filter sheets to the dynamic distillation process.