TY - RPRT TI - Performance tests of a Trion HCC high capacity electronic air cleaner (no. 25 cell) AU - Watson, Thomas W AU - Robinson, Henry E PY - 1958 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 5833 DO - 10.6028/NBS.RPT.5833 ER -