LEV Logbooks

All LEV systems should have a logbook.

Information Required

LEV Regulation 9 specifies the need for a logbook. It also contains LEV Testing frequencies together with the forms required to record the regular checks. Furthermore, these checks should cover the extract hoods, the ductwork, the dampers, the filters and fans. It should also include the name of the person undertaking the test.

Recording damage in the LEV logbook

Recording Damage in the LEV logbook

In particular, the logbook should identify all of the types of daily, weekly and monthly checks for damage to the parts of the system. In detail these should include:

Hoods, airflow indicators, damage, and blockages.
Along with any damage to the ductwork or any blockages.
If the dampers are set correctly, and also if they are damaged.
Air cleaners – the filter condition, and the pressure drop across it.
Failure of any alarms on the systems.
Air mover noise, vibrations, power usage.
Any repair work carried out.
Workers should use the logbook to record when they replace LEV parts.
Repairs.
The operator’s use of the system. Moreover, do they use it correctly?

Other checks that companies should include in the Logbook.

Other checks that companies should include in the LEV Logbook.

Companies should also use the LEV logbooks to record any other checks that are routinely carried out. Such as:

The time to clear both booths and enclosures.
The positions of receiving hoods and capture hoods.
Capture hoods – capture zone still covering the working zone?
Enclosures – is the contaminant source still kept within the enclosure?
Operators working sideways on to the airflow in a walk-in booth.
Removal of obstructions in the LEV Hood.
Checking of fan noise.
Cleaning of fan blades.
Fan bearings.
Filter material replacement.

The LEV logbook should also include

Space to report the results of each test.
Signature and date.

Undocumented existing systems

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LEV Logbooks

Information Required

Recording Damage in the LEV logbook

Other checks that companies should include in the LEV Logbook.

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