... 4, CE/ROHS / PSE 5, OEM/ODM. Food Dehumidifier Box Basic Information Product NameProduct ModelOutside Size(mm)Inside Size(mm ... Relative humidityProtection Scope60%-55%classics,old paintings and antiques,coins,stamps,copy paper,fax paper,printing papers etc55%-45% ... ,camera lens,microscope,telescope,CD,positive and negative film,musical instruments,fur,medicines etc45%-35%Non-ferrous metals,parked ...