Perfect for home,office,and in-vehicle use Specifications:Compact size:easy for carrying and placementTwo Layer filters:PP coarse cotton filters,active carbon filter.Activated carbon catalyst can remove toluene,xylene,benzene,and other phenols,esters,alcohols, and tsuen gasesPP coarse cotton filters removes dust. The filters can be washed and reused.Quick indoor deodorantPerfect for home,office, ...