Indoor air can contain contaminants originating from outdoor pollution, manufacturing processes, occupants, building materials, cleaning chemicals and HVAC equipment.

Without suitable filtration, these contaminants may circulate throughout the building and settle on HVAC coils, ducts, equipment, surfaces and products.

A professionally designed air purifying solution helps improve air cleanliness by capturing or neutralising contaminants before the conditioned air enters the occupied area.

Depending on the application, our filtration systems may combine:

Zenvent Engineering develops customised air purifier solutions for central HVAC systems, air handling units, fresh-air units, ventilation systems and dedicated air-cleaning equipment.

An HVAC filtration system cleans air while it circulates through the air-conditioning or ventilation system.

Fresh air, return air or mixed air first passes through a pre-filter that captures larger dust particles. The air may then pass through fine filters, bag filters or pocket filters for improved particle removal.

Critical applications may require HEPA or ULPA filtration. Activated-carbon filters can be added for odour and VOC control, while a UV-C air cleaning system can support microbial air control inside the AHU or ductwork.

The cleaned air is then distributed through the supply-air ducts.

Zenvent Engineering provides commercial HVAC air filtration system installation for:

Our engineers consider airflow resistance and filter pressure drop before upgrading an existing HVAC system.

The correct filtration technology depends on the type and concentration of the contaminant.

A HEPA filtration system is used where high-efficiency airborne particle control is required.

HEPA filters are commonly applied in:

Zenvent Engineering provides:

The filter housing, sealing arrangement and installation quality are essential for reliable HEPA filtration performance.

Activated-carbon filters are used to control odours, smoke and certain gaseous contaminants.

An activated-carbon air filtration system may be installed in:

Activated-carbon filtration is normally installed after suitable particle filtration. This protects the carbon media from dust and helps maintain its effectiveness.

Zenvent Engineering provides odour and VOC-control filtration systems designed according to the contaminant type, concentration, airflow and required media quantity.

UVGI air purification uses ultraviolet germicidal energy to support microbial control inside HVAC systems.

A UV-C air cleaning system can be installed in:

Our solutions include:

A whole house air purifier with UV light may be integrated with a compatible central HVAC system. A whole-house UV light air purifier can support coil hygiene and microbial control when correctly sized and positioned.

UV equipment selection depends on:

UV-C systems are generally used alongside particle filtration rather than as a replacement for HVAC air filters.

A laminar airflow unit supplies filtered air in a controlled and uniform direction.

Laminar airflow systems are used where product, process or sample protection is required.

Common applications include:

Zenvent Engineering designs laminar airflow units with suitable fan capacity, HEPA or ULPA filters, airflow velocity and control arrangements.

A whole-house media air cleaner uses a deep filter media section to provide increased dust-holding capacity.

Media air cleaners may be installed in central residential or light-commercial HVAC systems.

Examples of commonly requested configurations include:

Equipment compatibility depends on:

Zenvent Engineering evaluates the existing system before recommending the best central air purifier arrangement.

Healthcare facilities require dependable control of airborne particles and microorganisms.

A hospital air filtration system may be required for:

Zenvent Engineering provides:

A negative-pressure room filtration system helps prevent air from moving from a controlled room into adjacent areas. The arrangement may include dedicated exhaust, HEPA filtration, airflow control and room-pressure monitoring.

Laboratory applications may generate fumes, odours, airborne particles and chemical vapours.

A laboratory air cleaning and filtration system may include:

Zenvent Engineering designs laboratory filtration systems according to the activities performed, chemicals used, airflow requirements and room-pressure conditions.

Smoke and fumes often contain very fine particles and gaseous contaminants that require more than basic filtration.

A fume extraction system may include:

Zenvent Engineering provides industrial dust and fume filtration solutions for welding, machining, laboratory and manufacturing applications.

The extraction system is designed according to the contaminant source, airflow requirement, operating temperature and discharge arrangement.

A negative-air machine creates a controlled negative-pressure environment while filtering extracted air.

These systems are commonly used for:

A negative-air machine may include pre-filters, HEPA filters, fans and differential-pressure monitoring.

Zenvent Engineering can integrate negative-air equipment with temporary or permanent ductwork arrangements.

Commercial kitchen exhaust may contain grease, smoke, odours and fine airborne particles.

A kitchen exhaust filtration system can include:

Zenvent Engineering provides kitchen exhaust and odour filtration systems for:

The system is designed according to kitchen load, hood airflow, duct routing, installation space and exhaust-discharge conditions.

Fresh air can introduce dust, pollen, smoke and fine particles into a building. Return air can carry contaminants generated inside the occupied area.

Fresh-air and return-air filtration systems may include:

A ventilation air purifier can be integrated with the fresh-air system to improve the quality of incoming outdoor air.

Zenvent Engineering designs filtration systems for:

An integrated air purifier operates as part of the central HVAC system.

An HVAC with air purifier arrangement may combine:

Air purification HVAC solutions can be used in:

An integrated system must be designed according to the HVAC airflow and available fan capacity.

Zenvent Engineering works as a filtration and air cleaning system installation contractor for new projects, HVAC upgrades and renovation work.

Our installation services may include:

Each installation is completed according to the required airflow direction, equipment layout and maintenance access.

Air filters collect contaminants during operation and must be replaced at suitable intervals.

A blocked filter may cause:

Zenvent Engineering provides:

Our HVAC filter maintenance and replacement contractor services help maintain reliable airflow and filtration performance.

Zenvent Engineering works as a turnkey filtration and air cleaning system contractor.

Our turnkey services may include:

This approach provides a coordinated solution for commercial, healthcare, cleanroom and industrial filtration requirements.