APRILAIRE
BEYOND BY AERUS
BLUEAIR
CAMFIL
CARRIER
DAIKIN INDUSTRIES LTD.
HONEYWELL INTERNATIONAL INC.
JOHNSON CONTROLS
LENNOX INTERNATIONAL INC.
MANN+HUMMEL
PANASONIC CORP.
RECTORSEAL
RGF ENVIRONMENTAL GROUP INC.
RHEEM MANUFACTURING CO.
TRANE TECHNOLOGIES PLC.