Class III BSC

Metisafe Class III BSC works under principles with fresh air supply taken from the indoor environment to the work chamber and pass-box through pre/HEPA filtration. Exhausting of contaminated cabinet air to the outer atmosphere after HEPA filtration also protects the environment. That airflow pattern of BSC Class III provides safe work with biological risk group 3/4 agents and also with cytotoxic gas & materials if assembled with optional carbon filters. Total air in the work chamber is fully purged to the exhaust air ducts without recirculation. Exhausting to the outer atmosphere is accomplished by the help of an endpoint blower fan. Controlled air exhausting keeps work chamber and cabinet under negative pressure. In addition to the primary air-barrier accomplished by negative pressure within the work zones, double-wall negative plenum design of the Metisafe BSCs prevents particle escape to surroundings and zero leakage is ensured.