Halifax Fan is a frequent supplier to the nuclear industry and offers fans to AESS and BNFL specifications. Gas-tight fans are Designed for a hazardous nuclear extract ventilation applications and built for use in corrosive, toxic and radioactive ventilation systems, meeting the requirements of the AECP 1054 Standard for Ventilation of Radioactive Areas. Special paints may be applied internally and externally to comply with BS 4247 Part 1 : Test A, thereby providing a Decontamination Factor of 5849.