LEV design in the Emirate of Abu Dhabi begins with a named specification expressly adopted by ADPHC Code of Practice CoP 52.0 Local Exhaust Ventilation, Version 4.1, dated 27 February 2026. Section 3.1.1(i) states: "Employers shall ensure LEV are designed to the specification set by the American Standards Institute: ANSI/AIHA Z9.2-2006, Fundamentals Governing the Design and Operation of Local Exhaust Ventilation System; or equivalent international standard." CoP 52.0 is issued by the Abu Dhabi Public Health Centre under ADOSH-SF and is mandatory for employers in the Emirate of Abu Dhabi. ANSI/AIHA Z9.2-2006 therefore appears here because the Abu Dhabi Code itself makes it the design reference, or allows an equivalent international standard, not because this information resource has imported foreign guidance. Related subjects are addressed separately by the respirable crystalline silica site, the industrial hygiene site's page on ventilation and LEV assessment, the VOC and indoor chemicals site's coverage of adhesives, sealants and solvents, the construction dust site and the duct hygiene sibling dealing with kitchen extract cleaning.
Section 3.1.1(b) of ADPHC CoP 52.0 states: "Employers shall ensure performing a risk assessment in accordance with ADOSH-SF - Element 2 - Risk Management to determine the risks associated to identify areas where LEV is required to reduce employee's exposures to hazards materials/chemicals." The wording places the decision to provide LEV within the ADOSH-SF risk-management process. It is not presented as a stand-alone equipment purchase made before the process, material and task have been considered.
Section 3.1.1(c) continues: "Employers shall implement the Occupational Health and Safety hierarchy of controls as defined in ADOSH-SF - Element 2 - Risk Management, when developing control measures to remove or reduce employee exposure to hazards." LEV is therefore part of a hierarchy-based control decision. The supplied clause does not say that extraction automatically replaces consideration of elimination, substitution or other controls, and it does not provide a numerical trigger for choosing LEV.
Section 3.1.1(d) states: "Employers shall ensure that LEV systems are designed and installed such that identified hazards are managed and controlled to an acceptable level." The duty connects the completed installation to the hazards identified through risk assessment. The Code does not define one universal airflow, capture velocity or performance figure in this clause. "Acceptable level" must not be converted into an invented number.
Together, the clauses require risk identification under ADOSH-SF Element 2, application of the hierarchy of controls, a decision on where LEV is required, and design and installation that manage the identified hazard.
CoP 52.0 Section 3.2(a) states: "LEV shall be designed to prevent dispersion into the air of dusts, fumes, mists, vapors and gases in concentrations causing harmful exposure at any point of fallout." The clause focuses on preventing dispersion from the process and includes the point at which material may fall out of the air path. It gives no concentration value, averaging period or sampling basis in the supplied text.
Section 3.2(b) states: "LEV shall be designed to ensure no dusts, fumes, mists, vapor or gases are drawn through the work areas or walkways." This is a routing duty as well as a capture duty. A system that pulls contaminated air across occupied space towards a distant hood may move the contaminant without satisfying the stated design outcome.
Section 3.2(c) states: "Exhaust fans, jets, ducts, hoods, separators, and all necessary equipment, including refuse receptacles, shall be designed, constructed, maintained and operated as to ensure the required protection by maintaining volume and velocity of exhaust air sufficient to gather dust, fumes, vapors or gases from equipment or processes." The requirement extends across the complete plant train, including the refuse receptacle, rather than ending at the hood or fan.
The clause requires sufficient exhaust-air volume and velocity but supplies no universal numerical value, measurement condition, averaging period or sampling basis. Performance must therefore be defined for the actual equipment or process rather than copied from an unsupported generic figure.
Section 3.2(h) states: "LEV systems need to be designed for the material which they are intended to remove from the work environment." This short clause prevents a nominally similar extraction system from being assumed suitable for every dust, mist, fume, vapour or gas. Material properties affect capture, transport, separation, compatibility, accumulation and safe disposal, even though the supplied clause gives no numerical design table.
Section 3.2(i) states: "When contaminants could create a combustible or explosive hazard, the LEV system shall be designed to take this into account and reduce the potential for a fire or explosion." Combustibility and explosibility are therefore design inputs, not later maintenance observations. The supplied Abu Dhabi text gives no ignition value, concentration limit, zoning rule, duct velocity or explosion-protection calculation, so none should be attributed to it.
Section 3.2(p) adds: "LEV systems shall be designed to produce as little noise as reasonably practicable." Noise is consequently a design consideration for the plant itself. The clause does not state a sound level, measurement position, operating condition, averaging period or sampling basis. It requires minimisation so far as reasonably practicable without supplying a numerical criterion in the quoted provision.
The design brief should identify what is released, where it is generated, how it may behave in the duct and air cleaner, whether it can burn or explode, and how plant noise will be minimised. The supplied Code prescribes no document format, but the design must remain traceable to its stated hazards and outcomes.
The Abu Dhabi Code names exhaust fans, jets, ducts, hoods, separators, refuse receptacles and all necessary equipment, treating LEV as an integrated system. The specification should connect the source hood, duct route, fan duty, air-cleaning stage, receptacle, discharge and controls, while stating the process and material intended. The supplied material provides no universal component schedule, commissioning form or calculation template.
Design and installation are linked in Section 3.1.1(d). Changes to duct routing, hood position, fan selection or discharge during installation must not leave the completed plant unable to manage the identified hazards. Access for inspection, cleaning and component removal should also be considered, although the supplied clauses state no access dimensions, clearances or replacement intervals.
Section 5 of ADPHC CoP 52.0 contains the Code's own reference list. It cites "Controlling Airborne Contaminants at Work - UK HSE Book HSG 258"; "ESMA Standard 209 E: Industrial Safety And Health Regulations - Part 3: Occupational Health And Environmental Control"; "American National Standards Institute: ANSI/AIHA Z9.2-2006"; "OSHA PART 1910 - Occupational Safety and Health Standards - Subpart G - Occupational Health and Environmental Control - Section 1910.94 Ventilation"; "OSHA PART 1926.57: Ventilation"; "OSHA Technical Manual Section III - Chapter 3 (Ventilation Investigation)"; and "OSHA Standard on Respiratory Protection - 29 CFR 1910.134".
The same Code reference list also names an Industrial Development Bureau awareness flyer on abrasive blasting and spray painting and "U.K HSE INDG408 Clearing the Air - A simple guide to buying and using Local Exhaust Ventilation (LEV)". These documents are reported because the Abu Dhabi Public Health Centre placed them in Section 5, not because this site substitutes foreign guidance for the Abu Dhabi Code.
ESMA Standard 209 E is named in the reference list with the exact title "Industrial Safety And Health Regulations - Part 3: Occupational Health And Environmental Control". No statement is made here about its contents, present status or possible supersession because its text was not read and it is sold rather than published. The citation proves only that CoP 52.0 lists it under that title.
CoP 52.0 also requires annual fume hood certification by a third-party entity approved by the Emirates Authority for Standardization and Metrology. Annual is a certification interval, not a measured quantity, so it has no averaging period or sampling basis. That requirement should not be expanded into claims about the contents of ESMA Standard 209 E. The approval requirement and the appearance of ESMA 209 E in the reference list are related by institutional name, but the supplied material does not establish what the standard contains.
ADPHC Code of Practice CoP 52.0 is issued by the Abu Dhabi Public Health Centre under ADOSH-SF and is mandatory for employers in the Emirate of Abu Dhabi. It is not a federal instrument.
ADPHC CoP 52.0 Version 4.1, dated 27 February 2026, Sections 3.1.1(b) to 3.1.1(i), 3.2(a) to 3.2(i), 3.2(p) and Section 5.
ADPHC Code of Practice CoP 52.0 Local Exhaust Ventilation, Version 4.1, dated 27 February 2026, is mandatory for employers in the Emirate of Abu Dhabi under ADOSH-SF. Section 3.1.1(i) states: "Employers shall ensure LEV are designed to the specification set by the American Standards Institute: ANSI/AIHA Z9.2-2006, Fundamentals Governing the Design and Operation of Local Exhaust Ventilation System; or equivalent international standard." ANSI/AIHA Z9.2-2006 is therefore the Abu Dhabi Code's own named design specification, with an equivalent international standard allowed. It is not cited as independently imported guidance.
ADPHC CoP 52.0 is mandatory for employers in the Emirate of Abu Dhabi under ADOSH-SF. Sections 3.1.1(b) and 3.1.1(c) require risk assessment in accordance with ADOSH-SF Element 2 Risk Management and implementation of the occupational health and safety hierarchy of controls when developing measures to remove or reduce exposure. Section 3.1.1(d) then requires the LEV system to be designed and installed so that identified hazards are managed and controlled to an acceptable level. The supplied clauses state no universal numerical trigger for selecting LEV.
ADPHC CoP 52.0 is mandatory for employers in the Emirate of Abu Dhabi under ADOSH-SF, and its Section 5 reference list names "ESMA Standard 209 E: Industrial Safety And Health Regulations - Part 3: Occupational Health And Environmental Control". CoP 52.0 also requires annual fume hood certification by an Emirates Authority for Standardization and Metrology approved third-party entity; annual is an interval and has no averaging period or sampling basis. The supplied material does not establish the standard's contents, current status or whether it has been superseded. No further claim about ESMA Standard 209 E can therefore be made from the material provided.
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