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 ACMV Services Singapore 

Industrial buildings require effective mechanical ventilation to maintain good indoor air quality, control heat and humidity, remove pollutants, and provide a safe working environment. In Singapore’s warm and humid climate, properly designed ventilation is especially important for factories, warehouses, workshops, production facilities and other industrial premises.

For businesses planning new construction, renovation or upgrading works, ventilation design should consider the building’s occupancy, activities, heat load, air contaminants and applicable Singapore requirements.

Why Mechanical Ventilation Is Important in Industrial Buildings

Industrial facilities can generate heat, dust, fumes, vapours, smoke and other airborne contaminants. Natural ventilation alone may not provide sufficient airflow, particularly in enclosed production areas.

A properly designed mechanical ventilation system can:

• Improve indoor air quality

• Remove heat and excess humidity

• Exhaust fumes, dust and odours

• Provide adequate fresh-air supply

• Improve worker comfort

• Support safer industrial operations

• Reduce the risk of stagnant or contaminated air

• Improve overall building energy performance

Singapore’s Building Control requirements state that ventilation should be adequately provided for a building’s intended occupancy. Mechanical ventilation can be an acceptable solution where applicable requirements are met. HVAC Contractor Singapore

Singapore Standards for Mechanical Ventilation

Singapore Standard SS 553:2026 – Code of Practice for Air-Conditioning and Mechanical Ventilation in Buildings is the current standard covering ACMV design, installation, testing and commissioning, operation and maintenance for its stated scope.

The standard covers areas such as:

• Mechanical ventilation systems

• Outdoor air supply

• Ductwork and air passages

• Thermal insulation

• Electrical works

• Noise and vibration

• Energy recovery

• Testing and commissioning

• Maintenance

• Energy auditing

However, industrial ventilation used specifically to control workplace contaminants may involve additional requirements beyond general ACMV provisions. SS 553 itself distinguishes industrial ventilation for specific air contaminants from its general scope.

SS 658 for Local Exhaust Ventilation

For industrial processes involving specific contaminants, local exhaust ventilation (LEV) can be particularly important. SS 658:2020 is listed as the Singapore code of practice for the design, operation, testing and maintenance of local exhaust ventilation systems.

Key Mechanical Ventilation Requirements

1. Adequate Fresh Air Supply

Industrial buildings need sufficient outdoor air to maintain acceptable indoor conditions. The required airflow depends on the type of space, occupancy and activities being carried out.

Ventilation design should consider:

• Number of occupants

• Floor area and room volume

• Production processes

• Heat-generating equipment

• Pollutant sources

• Operating hours

• Required air-change rates

The current SS 553 framework includes requirements for outdoor-air supply and ventilation system design.

2. Effective Exhaust Ventilation

Exhaust systems are essential in areas where industrial processes generate heat, fumes, vapours, dust or odours.

Depending on the process, an industrial facility may require:

• General exhaust fans

• Local exhaust ventilation

• Process exhaust systems

• Fume extraction

• Dust extraction

• Heat extraction

• Toilet and sanitary exhaust

• Dedicated chemical or hazardous-area exhaust

The exhaust air should be discharged safely and positioned so that contaminated air does not re-enter the building through outdoor-air intakes.

3. Airflow and Air Distribution

Simply installing high-capacity fans does not guarantee effective ventilation. Air should move through the building in a controlled manner. ACMV Maintenance Singapore

A good ventilation design considers:

• Supply-air locations

• Exhaust-air locations

• Airflow direction

• Pressure relationships

• Dead zones

• Cross-contamination risks

• Equipment layout

Singapore’s NEA guidance also recommends checking that supply diffusers and exhaust grilles provide airflow in the correct direction and that air distribution is balanced.

4. Ventilation for Heat Removal

Factories and workshops can experience significant internal heat from machinery, production equipment, lighting and occupants.

Mechanical ventilation can help remove accumulated heat by introducing cooler outdoor air and exhausting warm indoor air.

For high-heat industrial environments, the system may combine:

• Exhaust fans

• Supply fans

• Air-conditioning

• Air washers

• Evaporative cooling

• HVLS fans

• Dedicated process ventilation

The correct solution depends on the industrial process and required indoor conditions.

Industrial Ventilation for Pollutants and Hazardous Substances

Local Exhaust Ventilation

Where contaminants are generated at a particular source, local exhaust ventilation can capture them before they spread into the general workplace.

Examples include:

• Welding fumes

• Chemical vapours

• Dust

• Solvent vapours

• Oil mist

• Process fumes

• Combustion products

A local extraction hood positioned close to the source can be more effective than relying only on general room ventilation.

Flammable and Explosive Substances

Industrial areas handling flammable or explosive substances may require dedicated mechanical ventilation and additional fire-safety provisions.

SCDF Fire Code requirements include dedicated ventilation provisions for rooms involving flammable and explosive substances. In the cited requirements, such systems include supply and exhaust components, with exhaust directed externally and separation from air-intake openings.

Because these systems involve fire and life-safety considerations, the final design should be reviewed against the applicable SCDF requirements and project conditions.

Ductwork and Ventilation Equipment

Ductwork Design

Industrial ventilation ducts should be properly designed and installed to minimise leakage, pressure losses and contamination problems.

Important considerations include:

• Correct duct sizing

• Air velocity

• Pressure loss

• Duct sealing

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• Fire protection

• Thermal insulation where required

• Corrosion resistance for aggressive environments

Fans and Air Handling Equipment

Ventilation fans should be selected according to the required airflow and system static pressure.

Energy efficiency should also be considered. SS 553:2026 includes fan power limitations and requirements related to ventilation-system energy performance.

Fire Safety Considerations

Mechanical ventilation systems may interact with the building’s fire and smoke-control strategy.

Depending on the building and system, considerations can include:

• Fire-rated ducts

• Fire dampers

• Smoke control

• Smoke exhaust

• Staircase pressurisation

• Fire alarm integration

• Emergency power

• Automatic system activation

SCDF Fire Code contains specific requirements for mechanical ventilation and smoke-control systems, so industrial projects should be assessed according to the applicable building and fire-safety provisions.

Testing and Commissioning

Why Testing Matters

A newly installed ventilation system should not simply be switched on and handed over. Testing and commissioning help verify that the system performs as designed.

Typical checks can include:

• Airflow measurement

• Fan performance

• Duct leakage

• Air balancing

• Pressure measurements

• Control-system operation

• Exhaust performance

• Emergency operation

• Noise and vibration

SS 553:2026 includes testing and commissioning as part of its ACMV engineering provisions.

Maintenance of Industrial Ventilation Systems

Regular Inspection

Industrial ventilation systems can lose performance because of dust accumulation, blocked filters, dirty fans, damaged ducts and poorly maintained dampers.

Regular maintenance should include:

• Cleaning or replacing filters

• Inspecting fans

• Checking belts and motors

• Cleaning exhaust grilles

• Inspecting ductwork

• Checking dampers

• Measuring airflow

• Checking controls

• Inspecting for air leakage

• Cleaning contaminated components where required

NEA guidance recommends regular ACMV maintenance, including inspection and cleaning of supply and exhaust fans, checking ducts and dampers, and ensuring air distribution is properly balanced.

Benefits of Professional Industrial Ventilation Design

Better Indoor Air Quality

Effective ventilation helps control airborne contaminants and provides fresh air to occupied areas.

Improved Worker Comfort

Removing excessive heat and humidity can create a more comfortable working environment.

Better Energy Efficiency

Correct fan selection, airflow control and system design can reduce unnecessary energy consumption.

Improved Equipment Performance

Managing heat and environmental conditions can support more reliable operation of industrial equipment.

Compliance Support

Working with an experienced M&E and ACMV contractor can help project owners address applicable Singapore standards and regulatory requirements during design and installation.

Why Choose LetsCorporate Singapore?

At LetsCorporate, we provide professional M&E and ACMV solutions for commercial and industrial projects in Singapore. Our approach focuses on practical system design, quality installation, testing, commissioning and maintenance.

Our services can support industrial facilities with:

• Mechanical ventilation systems

• Industrial exhaust systems

• ACMV installation

• Local exhaust ventilation solutions

• Ductwork installation

• Ventilation fan systems

• Air-conditioning systems

• M&E engineering works

• Testing and commissioning

• ACMV maintenance

Our team can assess the building layout, operational requirements and ventilation needs to develop a suitable solution for the project.

Conclusion

Mechanical ventilation is an essential part of many industrial buildings in Singapore. A well-designed system can improve indoor air quality, control heat, remove process contaminants, enhance worker comfort and support safer operations.

Industrial ventilation requirements should not be based on fan capacity alone. The design needs to consider airflow, occupancy, industrial processes, contaminants, ductwork, energy efficiency, maintenance and fire-safety requirements.

For industrial ventilation and ACMV projects, LetsCorporate Singapore can provide professional M&E and ventilation solutions tailored to commercial and industrial building requirements.

11, Mandai Estate, #05-15

Singapore, 729908 

Call : +65 8941 0459 

Mail ID: tender@letscorporate.com.sg 

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