🌬️ The Growing Challenge of Airborne Hazards in Malaysian Industries

Across Malaysia, industries are facing increasing pressure to maintain safe working environments while meeting stricter regulatory requirements.

Whether it's:

• Welding fumes in fabrication workshops
• Solvent vapours in chemical plants
• Dust from woodworking operations
• Powder handling in pharmaceutical facilities
• Oil mist in machining processes

Airborne contaminants remain one of the most overlooked workplace hazards.

Many companies only take action when:

• Workers start complaining about fumes or dust
• A DOSH audit is scheduled
• A system breakdown disrupts production
• An annual LEV inspection identifies major deficiencies

The reality is:

An effective Local Exhaust Ventilation (LEV) system requires much more than annual inspection.

It requires proper design, installation, commissioning, maintenance, and continuous performance verification.

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What is a Complete LEV Solution?

A Local Exhaust Ventilation (LEV) system is an engineered control designed to capture airborne contaminants at the source before they reach workers' breathing zones.

A properly designed LEV system consists of:

✔ Capture Hood
✔ Ducting Network
✔ Air Cleaning Device (Dust Collector, Scrubber, Filter)
✔ Fan & Motor
✔ Exhaust Stack / Chimney

If any component is poorly designed or maintained, the entire system's effectiveness can be compromised.

This is why leading industries are moving towards a One-Stop LEV Service Model.

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Why One-Stop LEV Services Matter

Many facilities engage different vendors for:

• LEV Design
• Equipment Supply
• Installation
• Testing
• Inspection
• Maintenance

This often creates challenges:

❌ Design assumptions not communicated to installers
❌ Incorrect fan selection
❌ Poor commissioning data
❌ Difficult troubleshooting when issues arise

When problems occur, responsibility becomes unclear.

A one-stop solution eliminates these gaps.

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The Complete LEV Journey

1️⃣ Consultation & Site Assessment

Every successful LEV project starts with understanding the process.

Before any calculations are made, it is important to evaluate:

• Type of contaminant generated
• Emission source characteristics
• Worker exposure points
• Production process requirements

Proper assessment ensures the system addresses the actual workplace hazard.

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2️⃣ LEV Design & Engineering

LEV design is not simply selecting a fan.

Engineering considerations include:

• Capture velocity
• Duct sizing
• Transport velocity
• Static pressure calculations
• Fan selection
• Filtration requirements
• Chimney discharge design

A poorly designed LEV system can consume excessive energy while still failing to control exposure effectively.

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3️⃣ Installation & Construction

Even the best design can fail if installation quality is poor.

Critical installation factors include:

• Duct sealing
• Airflow balancing
• Hood positioning
• Fan alignment
• Structural support

Professional installation ensures the system performs as intended.

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4️⃣ Testing & Commissioning

Before handover, the system should be verified through:

• Airflow measurements
• Static pressure testing
• Smoke testing
• Capture effectiveness assessment

Commissioning confirms that the LEV system performs according to design specifications.

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5️⃣ LEV Inspection & Verification

Under the Occupational Safety and Health (Use and Standards of Exposure of Chemicals Hazardous to Health) Regulations 2000 (USECHH 2000), LEV systems used to control chemical exposure must be examined and tested regularly.

Regular inspection helps identify:

• Reduced airflow
• Damaged ducting
• Fan performance issues
• Filter deterioration

Without periodic verification, system performance can gradually decline without obvious signs.

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6️⃣ Preventive Maintenance

One of the biggest mistakes companies make is waiting until the system fails.

A structured preventive maintenance program helps:

✔ Reduce unexpected breakdowns
✔ Extend equipment lifespan
✔ Improve energy efficiency
✔ Maintain compliance readiness

Preventive maintenance is often significantly cheaper than emergency repairs or premature equipment replacement.

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7️⃣ Troubleshooting & Repair

When performance drops, identifying the root cause quickly is essential.

Common issues include:

• Filter blockage
• Air leakage
• Fan inefficiency
• Incorrect airflow balance

Effective troubleshooting restores system performance while minimizing production disruption.

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8️⃣ Training & Awareness

Even the best LEV system can be compromised if operators do not understand:

• Proper hood positioning
• Daily inspection practices
• Basic warning signs
• Reporting procedures

Training creates long-term sustainability and system effectiveness.

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Industries That Require Professional LEV Services

Professional LEV services are critical for:

🏭 Manufacturing Plants
🔩 Metal Fabrication Workshops
🧪 Chemical Processing Facilities
🧫 Laboratories
🌴 Palm Oil Mills
🚗 Automotive Facilities
🛢️ Oil & Gas Operations
💊 Pharmaceutical Facilities

Any process that generates airborne contaminants can benefit from properly engineered LEV solutions.

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Why Industries Choose ZABSI

ZABSI Industrial Ventilation provides complete LEV solutions under one roof:

✔ Consultation & Assessment

Understanding your process before proposing solutions.

✔ Design & Engineering

Airflow calculations, duct design, and equipment selection.

✔ Supply & Installation

Complete LEV system implementation.

✔ Testing & Commissioning

Performance verification before handover.

✔ Inspection & Compliance Support

Helping clients meet regulatory requirements.

✔ Preventive Maintenance

Monthly, quarterly, and annual maintenance programs.

✔ Troubleshooting & Upgrading

Improving performance of existing systems.

✔ Training & Awareness

Building competency for sustainable operation.

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The Future of Workplace Compliance Starts with the Right LEV Partner

Many organizations focus only on compliance when audits are approaching.

The most successful facilities take a different approach:

They view LEV as:

• A worker protection system
• An operational reliability tool
• A compliance strategy
• A long-term investment

A properly managed LEV system protects people, supports productivity, and reduces operational risk.

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Let ZABSI Be Your One-Stop Centre for LEV Services

Whether you need:

✅ LEV Design & Engineering
✅ New LEV Installation
✅ LEV Inspection & Verification
✅ Preventive Maintenance Programs
✅ Troubleshooting & Upgrading
✅ Training & Awareness Programs

ZABSI is ready to support your journey from concept to compliance.

📞 Contact Us: 018-9530803
📧 sales@zabsi.com
🌐 Website: www.zabsi.com