Why Every Painting and Blasting Company Needs a Proper LEV System

Painting and abrasive blasting are two of the most hazardous processes carried out on any factory floor or workshop. Airborne paint mist, solvent vapours, and fine abrasive dust don't just create a mess, they pose serious health risks to workers and can put your operation on the wrong side of Malaysia's environmental and safety regulations.

If your business handles surface coating, spray painting, or sandblasting (also known as abrasive blasting) as part of your operations, a properly designed Local Exhaust Ventilation (LEV) system is not optional. It is a critical piece of equipment that protects your people, safeguards your equipment, and keeps you compliant with the law.

At ZABSI Industrial Ventilation, we specialise in designing, installing, and maintaining LEV systems tailored specifically for painting and blasting environments across Malaysia, Singapore, Indonesia, and Thailand.

The Hidden Hazards of Painting and Blasting Operations

Painting and blasting jobs generate a mix of airborne contaminants that are easy to underestimate:

• Paint overspray and solvent vapours — containing volatile organic compounds (VOCs) that affect the respiratory system and are flammable in high concentrations
• Silica dust and abrasive particulates — released during sandblasting or grit blasting, linked to serious long-term lung conditions such as silicosis
• Metal fumes and coating residues — especially in operations involving primer application on steel structures, pipelines, or heavy machinery

Without effective extraction, these contaminants accumulate in the workspace, exposing operators to concentrations well above safe occupational exposure limits — and creating fire and explosion risks in enclosed booths.

What Is an LEV System, and Why Does It Matter?

A Local Exhaust Ventilation (LEV) system captures airborne contaminants at the source — right where the paint spray gun or blasting nozzle is being used — before they can spread into the general work area. This is fundamentally different from general dilution ventilation, which simply circulates air around the whole room and is far less effective at protecting workers close to the emission source.

A well-engineered LEV system for painting and blasting typically includes:

• Capture hoods or booth extraction points positioned to intercept overspray and dust at the source
• Ducting systems sized correctly to maintain adequate air velocity and prevent particulate settling
• Dust collectors or cartridge filters for blasting dust, and paint arrestors or filter banks for spray booths
• Exhaust fans matched to the required airflow (CFM) for the booth or work area
• Stack discharge points designed in line with air pollution control requirements

Compliance: It's the Law, Not Just Good Practice

In Malaysia, employers are required under the Use and Standards of Exposure of Chemicals Hazardous to Health (USECHH) Regulations 2000 to control worker exposure to hazardous chemicals, which includes paint solvents and blasting dust. Employers must also ensure LEV systems are examined and tested at prescribed intervals, with records maintained for inspection by the Department of Occupational Safety and Health (DOSH).

For companies operating emission points such as blasting dust collectors or spray booth stacks, submissions may also be required under the Environmental Quality (Clean Air) Regulations 2014, administered by the Department of Environment (DOE).

Failure to have a properly functioning LEV system can result in:

• Regulatory penalties and stop-work orders
• Increased risk of occupational illness claims
• Higher long-term maintenance costs from equipment corrosion caused by airborne contaminants
• Reputational damage with clients and regulators

How ZABSI Helps Painting and Blasting Companies Stay Compliant and Efficient

ZABSI Industrial Ventilation is a wholly owned Bumiputera company with over a decade of experience delivering end-to-end LEV and HVAC solutions for industrial clients across Southeast Asia. For painting and blasting operations specifically, we provide:

1. Site assessment and airflow study — understanding your process, booth layout, and contaminant type before designing a solution
2. Custom LEV system design — hood selection, duct sizing, and fan specification matched to your operation's scale
3. Supply and installation — complete system delivery, from capture hoods to stack discharge
4. Testing and commissioning — verifying airflow performance meets required standards
5. LEV inspection and performance testing under USECHH 2000
6. Preventive maintenance — filter servicing, ducting inspection, and fan maintenance to keep systems running efficiently
7. DOE submission support for Clean Air Regulation 2014 compliance

Our sister company, ESGPro Engineering & Consultancy, further supports clients with performance studies, DOE submissions, and compliance documentation — giving painting and blasting operators a true one-stop solution from engineering design through to regulatory approval.

Signs Your Current Ventilation System Needs an Upgrade

If any of the following sound familiar, it may be time for a professional LEV assessment:

• Workers report headaches, dizziness, or respiratory irritation during or after shifts
• Visible dust or overspray settling on surfaces outside the booth area
• Persistent solvent or chemical odour in the workspace
• Your LEV system has not been tested or inspected in over 12 months
• You are planning to scale up painting or blasting capacity

Frequently Asked Questions

What is the difference between LEV and general ventilation? LEV captures contaminants directly at the source of emission, such as at a spray gun or blasting nozzle, making it far more effective for controlling hazardous exposure than general room ventilation, which only dilutes air after contaminants have already dispersed.

How often should an LEV system be inspected in Malaysia? Under USECHH 2000, LEV systems must be examined and tested at least once every 12 months by a competent person, with results documented and made available for DOSH inspection.

Can ZABSI design an LEV system for an existing paint booth or blasting chamber? Yes. ZABSI conducts site assessments to retrofit or upgrade existing booths and chambers with properly sized extraction, ducting, and filtration systems where the current setup is inadequate or non-compliant.

Does ZABSI provide DOE submission support for blasting or spray painting facilities? Yes. Through our engineering and consultancy arm, ESGPro, we assist clients with DOE submissions under the Clean Air Regulations 2014, including emission point registration and performance monitoring.

Protect Your Workers. Protect Your Compliance. Protect Your Operations.

Painting and blasting operations carry real risks — but with the right LEV system in place, those risks are manageable. ZABSI's team of experienced engineers is ready to assess your facility and design a solution built for your specific process.

Talk to ZABSI today to schedule a site assessment for your painting or blasting LEV system.

📞 09-8592095 | 📧 [email protected] | 🌐 www.zabsi.com