A　pump-driven　loop　heat　pipe　energy　recovery　device　was　proposed　to　reduce　the　energy　consumption　of　fresh　air　handling　in　public　buildings　through　energy　recovery　from　exhaust　air.　An　experimental　setup　was　built　to　investigate　the　energy　recovery　device　operating　characteristics　for　3　working　fluids　under　8　working　conditions.　The　influence　of　working　fluid　and　working　condition　on　heat　transfer　rate,　temperature　efficiency　and　coefficient　of　performance　(COP)　of　the　device　was　studied.　Results　show　that　the　device　can　meet　the　energy　recovery　requirements　in　public　buildings　with　obvious　energy　saving.　The　heat　transfer　rate　and　COP　increase　with　the　temperature　difference　between　indoor　and　outdoor　air　while　the　temperature　efficiency　decreases.　The　COP　under　the　summer　and　winter　conditions　can　reach　up　to　11.07　and　23.82,　respectively.　The　performance　of　the　device　using　R32　as　working　fluid　is　better　than　that　of　R22　and　R152a.　©　2016,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.