1-Two sources of electricity in the interior. 2- Electrostatic painted outer body. 3- Anti stain. 4- HEPA filter for life time. 5- Digital LCD control. 6- Ultraviolet lamp(UV) for sterilization. 7- Interior illumination(fluorescent lamp). 8- Applied with pre-filter and one HEPA filter. 9- Anti-corrosion stainless steel internal(304). 10- Manual open-close door.