ID,AegisName,Name,Type,Buy,Sell,Weight,ATK,DEF,Range,Slots,Job,Upper,Gender,Loc,wLV,eLV,Refineable,View,{ Script },{ OnEquip_Script },{ OnUnequip_Script }
no slot
2219,Flu_Mask_,Flu Mask,5,300,,100,,0,,0,0xFFFFFFFF,7,2,1,,0,0,8,{ bonus2 bResEff,Eff_Silence,1000; },{},{}
with slot
2219,Flu_Mask_,Flu Mask,5,300,,100,,0,,1,0xFFFFFFFF,7,2,1,,0,0,8,{ bonus2 bResEff,Eff_Silence,1000; },{},{}
and also don't forget to change your itemslotcounttable for your client side.