Exhibit 21

CLARCOR INC. SUBSIDIARIES

As of January 21, 2011

NAME	JURISDICTION OF INCORPORATION OR ORGANIZATION	PERCENT OF OWNERSHIP*
Domestic
Baldwin 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 LLC	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	%
TransWeb, LLC	New Jersey		100	%
TPS, LLC	Texas		100	%
United Air Specialists, Inc.	Ohio		100	%
International
Airguard 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	%
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	%
PECOFACET DO BRAZIL COMERCIA DE FILTROS LTDA.	Brazil		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		100	%
Purolator Advanced Filtration (Quzhou) Co Ltd.	China		100	%
SINFA, S.A.	Morocco		80	%
Weifang Yuhua Filters, Ltd.	China		100	%

*  Direct or indirect