





Passive Filtration
Bag Filters
High-performance bag filters designed for efficient particulate filtration in commercial and industrial ventilation systems. Our bag filters are commonly used in air handling units and extract systems to remove airborne dust and contaminants, helping to protect equipment, improve air quality and support reliable system operation. A range of bag filter grades is available to suit different filtration efficiencies and application requirements.
Bag filters are supplied in standard modular sizes, including 592 × 592 mm, to suit common filter enclosure dimensions, ensuring accurate fit, effective sealing and simple replacement. Where standard bag filter sizes are not suitable due to enclosure design or project-specific constraints, bespoke, bag filters can be manufactured. Please contact the team to discuss your required bag filter dimensions and we will advise on the most appropriate solution.
Our technical team provides support with bag filter selection, enclosure compatibility and guidance on DW172 and other relevant standards. Speak to one of the team to discuss your bag filter requirements or to get technical advice on the most suitable bag filter solution for your project. Browse our other filtration options: carbon filters, HEPA filters, pleated panel filters.
Trusted by Commercial & Industrial Leaders
Understanding System Performance in Real Applications
How it's works
Air flows through multiple filter pockets which trap particulate while distributing airflow evenly to maximise dust holding capacity and service life.

Bag Filters
- Notes
on
Application
Commonly used as pre-filtration or intermediate filtration stages in air handling systems.
Suitable for commercial and industrial ventilation applications.
Helps protect downstream high-efficiency filters and sensitive equipment.
Installed in standard housings or modular filter units depending on system design.

Industries We Design For
Each system is engineered around real-world airflow, contaminant and compliance requirements.
Proven Systems. Personal Service.
The Trusted Choice for Installers & Consultants
Performance Superiority
Optimised balance between filtration efficiency and pressure drop.
Regulatory Confidence
Widely used as a pre-filter stage in commercial systems.
Personal Service
Available in standard and bespoke sizes.
Proven Systems. Personal Service.
The Trusted Choice for Installers & Consultants
Performance Superiority
Optimised balance between filtration efficiency and pressure drop.
Regulatory Confidence
Widely used as a pre-filter stage in commercial systems.
Personal Service
Available in standard and bespoke sizes.
Proven Systems. Personal Service.
The Trusted Choice for Installers & Consultants
Performance Superiority
Optimised balance between filtration efficiency and pressure drop.
Regulatory Confidence
Widely used as a pre-filter stage in commercial systems.
Personal Service
Available in standard and bespoke sizes.
What Our Clients Say
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“Great support and service!”
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"I have had excellent service and communication from Extechnology"
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“Great company to work with. Nothing is too much trouble”
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“Great service and industry leading advice"
5.0
“Great support and service!”
5.0
“Excellent customer service”
5.0
"Great company to work with. Nothing is too much trouble"
What Our Clients Say
5.0
“Great support and service!”
5.0
"I have had excellent service and communication from Extechnology"
5.0
“Great company to work with. Nothing is too much trouble”
5.0
“Great service and industry leading advice"
5.0
“Great support and service!”
5.0
“Excellent customer service”
5.0
"Great company to work with. Nothing is too much trouble"
What Our Clients Say
5.0
“Great support and service!”
5.0
"I have had excellent service and communication from Extechnology"
5.0
“Great company to work with. Nothing is too much trouble”
5.0
“Great service and industry leading advice"
5.0
“Great support and service!”
5.0
“Excellent customer service”
5.0
"Great company to work with. Nothing is too much trouble"
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Need Systems That Are Ready to Install and Comply?
Get compliant, high-performance systems backed by UK stock, fast support, and direct access to experienced engineers.

Need Systems That Are Ready to Install and Comply?
Get compliant, high-performance systems backed by UK stock, fast support, and direct access to experienced engineers.

Need Systems That Are Ready to Install and Comply?
Get compliant, high-performance systems backed by UK stock, fast support, and direct access to experienced engineers.
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