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Head office: North Frith Oasts, Ashes Lane, Hadlow, Kent TN11 9QU

Manufacturing site: Brookhill Industrial Estate, Plymouth Avenue, Pinxon, Nottingham NG16 6NS

Passivent is a division of Building Product Design Ltd.

Other subsidiaries include Glidevale Protect, a specialist in ventilation solutions, condensation control and energy efficiency across the built environment and Kingfisher Louvres, manufacturer of aluminium louvre systems.

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