dry ref name relative humidity ref material properties determine affect different levels rh particular item organic materials like wood paper leather well inorganic material like metals susceptible damage incorrect rh ref name nps ref damage ranges physical changes like cracking warping organic materials chemical reactions like corrosion metals ref name relative humidity temperature direct effect relative humidity warm air cools relative humidity increases cool air warms relative humidity falls ref name relative humidity dampness cause growth mold
Applied science Library and museum studies Conservation science