... Description of each conponents Casing: modified PP plastics adopted, high strength, not easy deformation, ultraviolet ray and ageing ... freeWet curtain: imported paper adopted, good water absorption, high evaporation efficiency, specially formulated glue, greenness and environmental protection ... use Siboly Air Cooler 1 For indoor using: home ,office,class,restaurant ,etc.2 For outdoor using: yard, ...