Exhibit 21 CLARCOR INC. SUBSIDIARIES   As of January 22, 2010  Name

          

          Jurisdiction of Incorporation orOrganization

          

          Percent ofOwnership*DomesticBaldwin Filters, Inc.

          

          

          Delaware

          

          

          

          100%Baldwin South Africa, Inc.

          

          

          Delaware

          

          

          

          100%CLARCOR Air Filtration Products, Inc.

          

          

          Kentucky

          

          

          

          100%CLARCOR Consumer Products, Inc.

          

          

          Delaware

          

          

          

          100%CLARCOR Filtration Products, Inc.

          

          

          Delaware

          

          

          

          100%CLARCOR International, LLC

          

          

          Delaware

          

          

          

          100%CLARCOR Total Filtration, Inc.

          

          

          Delaware

          

          

          

          100%Clark Filter, Inc.

          

          

          Delaware

          

          

          

          100%CLC Support Services, Inc.

          

          

          Delaware

          

          

          

          100%Facet USA Inc.

          

          

          Delaware

          

          

          

          100%Flo-Line Filters, Inc.

          

          

          Texas

          

          

          

          100%J.L. Clark, Inc.

          

          

          Delaware

          

          

          

          100%Keddeg Company

          

          

          Missouri

          

          

          

          100%Leedar, Inc.

          

          

          Oklahoma

          

          

          

          100%Martin Kurz & Co., Inc.

          

          

          New York

          

          

          

          100%Mexico Perry Equipment LLC

          

          

          Texas

          

          

          

          100%Perry Equipment Corporation

          

          

          Delaware

          

          

          

          100%Perry International Holdings, LLC

          

          

          Delaware

          

          

          

          100%Purolator Liquid Process, Inc.

          

          

          Delaware

          

          

          

          100%Purolator EFP, LLC

          

          

          Delaware

          

          

          

          100%Purolator Facet, Inc.

          

          

          Delaware

          

          

          

          100%Scientific Process Solutions, Inc.

          

          

          Delaware

          

          

          

          100%Total Filtration Services, Inc.

          

          

          Ohio

          

          

          

          100%TPS, LLC

          

          

          Texas

          

          

          

          100%United Air Specialists, Inc.

          

          

          Ohio

          

          

          

          100%InternationalAirguard Asia Sdn. Bhd.

          

          

          Malaysia

          

          

          

          100%Airklean Engineering Pte. Ltd.

          

          

          Singapore

          

          

          

          100%Baldwin Filters (Aust) Pty Limited

          

          

          Australia

          

          

          

          100%Baldwin Filters (PTY) LTD SA.

          

          

          South Africa

          

          

          

          100%Baldwin Filters Limited

          

          

          United Kingdom

          

          

          

          100%Baldwin Filters N.V.

          

          

          Belgium

          

          

          

          100%CLARCOR Filtration (China) Co Ltd.

          

          

          China

          

          

          

          100%CLARCOR International Holdings B.V.

          

          

          Netherlands

          

          

          

          100%CLARCOR UK (Holdings) Limited

          

          

          United Kingdom

          

          

          

          100%CLARCOR UK Limited

          

          

          United Kingdom

          

          

          

          100%CLARCOR Filtration Commerce (Shanghai) Co. Ltd

          

          

          China

          

          

          

          100%Facet Deutschland GmbH

          

          

          Germany

          

          

          

          100%Facet Iberica S.A.

          

          

          Spain

          

          

          

          100%Facet FCE S.A.R.L.

          

          

          France

          

          

          

          100%Facet Industrial B.V.

          

          

          Netherlands

          

          

          

          100%
     Name

          

          Jurisdiction of Incorporation orOrganization

          

          Percent ofOwnership*Facet Industrial U.K. Limited

          

          

          United Kingdom

          

          

          

          100%Facet Italiana, S.p.A.

          

          

          Italy

          

          

          

          100%Filtros Baldwin de Mexico S.A. de C.V.

          

          

          Mexico

          

          

          

          90%Niagara Screen Products Limited

          

          

          Canada

          

          

          

          100%PECO Filters Limited

          

          

          Canada

          

          

          

          100%PECOFacet (Asia Pacific)

          

          

          Malaysia

          

          

          

          100%Peco Facet Filtration Equipment (Beijing) Co., Ltd.

          

          

          China

          

          

          

          100%PECO International (Lux) SARL

          

          

          Luxembourg

          

          

          

          100%Perry Equipment de Mexico SRL

          

          

          Mexico

          

          

          

          100%Perry Equipment Ltd.

          

          

          United Kingdom

          

          

          

          100%Perry Filtration Solutions SRL

          

          

          Romania

          

          

          

          100%Perry Holding de Mexico SRL

          

          

          Mexico

          

          

          

          100%Perry Operations de Mexico SRL

          

          

          Mexico

          

          

          

          100%Perry Properties de Mexico SRL

          

          

          Mexico

          

          

          

          100%Pujiang Novaeastern International Mesh Co., Ltd.

          

          

          China

          

          

          

          85%Purolator Advanced Filtration (Quzhou) Co Ltd.

          

          

          China

          

          

          

          85%SINFA, S.A.

          

          

          Morocco

          

          

          

          80%Weifang Yuhua Filters, Ltd.

          

          

          China

          

          

          

          100%
  *

          Direct or indirect