If local exhaust ventilation or enclosure is not used, respirators are necessary.
2.
Where possible, operations should be enclosed and the use of local exhaust ventilation at the site of chemical release is recommended.
3.
In the UK, the Health and Safety Executive has implemented COSHH regulations to ensure all industrial workplaces protect the health of their employees via effective Local Exhaust Ventilation ( LEV ).
4.
Measures to prevent overexposure to methylene chloride include use of stripping agents relying on other chemicals instead, the implementation of adequate local exhaust ventilation, and the provision of appropriate personal protective equipment ( i . e . respirators ).
5.
These may include removing the spacesuit in a three-stage airlock, " vacuuming " the suit with a magnet before removal, and using local exhaust ventilation with a high efficiency particulate filter to remove dust from the spacecraft's atmosphere.
6.
A "'gas cabinet "'is a metallic enclosure which is used to provide local exhaust ventilation system for virtually all of the gases used or generated in the Semiconductor, Solar, MEMS, NANO, Solar PV, Manufacturing and other advanced technologies.
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