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Ventilation & Extraction

Local exhaust ventilation and the fans, hoods, ducting and filtration around it. Where LEV controls exposure to a substance hazardous to health, COSHH requires a thorough examination and test at least every fourteen months for most processes.

7 types, and what a survey records

Equipment type	Recorded for each one
Fan / Extract	Power rating · Voltage · Phase · Full Load Amps · Airflow rate · Static pressure · Fan type · VSD fitted · Motor link · LEV thorough examination date
Scrubber	Extract volume · Capture velocity / face velocity · Rated power · LEV thorough examination date · Filtration / abatement · Air returned to the workspace
Dust Extraction System	Fan power · Airflow · Filter type · Demand-controlled · Capture velocity at the hood · LEV thorough examination date · Air returned to the workspace
Weld Fume Extraction	Number of arms / hoods · Extract volume · Capture velocity at the arm · Filtration · LEV thorough examination date · Welding process served
Oil Mist Collector	Extract volume · Rated power · Filtration stages · LEV thorough examination date · Machine served · Coolant type
LEV Hood / Capture Point	Hood type · Capture velocity · Contaminant captured · LEV thorough examination date · Extraction system it belongs to
Make-up Air Unit	Supply volume · Rated power · Air heated · Extraction it balances · Duty

Anything not listed is recorded under “Other Ventilation & Extraction” — no list of industrial equipment is ever finished, and a register that pretends otherwise forces people to pick something untrue.

Other categories

Production · Surface Finishing & Treatment · Packaging & Labelling · Inspection & Test · Materials Handling · Process Heat · HVAC & Refrigeration · Compressed Air · Electrical Distribution · Water & Effluent · Utilities · Controls & Automation · Lighting · Sensors / Instrumentation