HALTON KGS - DUCT SAFETY SYSTEM IS NOW HACCP CERTIFIED! HACCP certification supports organisations that demonstrate food safety excellence in non-food products that are designed for, or commonly used in, the food industry.Only products that are certified by HACCP International can carry the HACCP mark. The HACCP International mark is particularly aimed at those products that are required to be ‘food safe’ compliant, or HACCP approved in order to meet the food safety demands of their quality conscious customers.Halton has been the first kitchen ventilation solutions manufacturer having its products HACCP certified. Our certificate has been renewed in March, 2012 (PE-567-HM-02I) and now includes the KGS system.