Pasanen T, Kalliokoski P, Kokotti H
Bibliographic info:
in: "Progress in Modern Ventilation", Proceedings of Ventilation 2000, Volume 2, proceedings of the 6th International Symposium on Ventilation for Contaminant Control, held Helsinki, Finland, 4-7 June 2000, Finnish Institute of Occupational Health

The classification of fume hoods in laboratories was conducted as a occupational protection part of risk assessment and management procedure. The fume hoods (n = 296) in laboratories were classified according to the observed face velocities. Classification scheme included descriptions of recommended use. Only 30 % of fume hoods were recommended for normal laboratory duties and 7 % were recommended not at all to be used.