Porous structure
Density, thickness and porosity are considered together rather than treated as isolated catalogue values.
Functional material pillar
Nonwoven Filter Media for Water, Air & Liquid Filtration
Nonwoven filtration media can provide a porous, configurable structure for air, water and liquid-management systems. Viora coordinates material evaluation and B2B supply around the customer's filter design, target medium and conversion requirements.
P / 03Material overview
Filter media defined by the complete system
A filtration nonwoven cannot be selected by material name alone. Fiber composition, density, thickness, porosity, air permeability, layer construction and final geometry all influence how the media behaves in the assembled filter.
Viora primarily supplies upstream engineered nonwoven roll materials rather than woven filter cloth, finished filter bags, finished filter cartridges or complete filtration devices. Buyers may describe suitable structures as nonwoven filter media, nonwoven filter fabric or polyester filter media; they are not presented as woven filter cloth.
Learn how nonwoven filter media works and which properties should guide sourcing. ↗Confirmed manufacturing data
Polyester needle-punched nonwoven filter media
Viora supplies needle-punched nonwoven structures based primarily on polyester / PET fiber for filtration and other functional applications. Other fiber or material systems may be evaluated where the application requires them, but are not implied to be present in every filter-media specification.
The table presents confirmed manufacturing capability and one material-specific tested interception result. It does not define a universal filtration grade for the entire range.
| Material | Primarily polyester / PET fiber |
|---|---|
| Construction | Needle-punched nonwoven |
| Basis weight | 80–800 g/m² |
| Thickness | 0.8–8 mm |
| Width | 14 cm–3 m |
| Supply format | Roll material / customized width |
| Daily capacity | Up to 15 tons/day |
| Particle interception | ≥99.78% for particles ≥100 μm — only under the corresponding tested material/specification |
Specification framework
Variables for nonwoven filter media development
Specifications are evaluated with specialized manufacturing partners and confirmed for the intended application, format and validation plan.
Flow characteristics
Air permeability or liquid-flow requirements should be aligned with the full filter construction and test method.
Material and layers
PET-based media and other functional structures can be evaluated according to the medium and assembly.
Format customization
Roll, sheet and converted components can be reviewed for cartridges, appliances and OEM filter systems.
Filtration systems supported at pillar level
Water and liquid filtration
Qualified media structures for water handling, process liquids, pet water fountain filters and application-specific liquid filter assemblies.
Air and dust filtration
Porous layers considered for air movement, particle management and dust-related components.
Filter cartridges and custom porous components
Roll, sheet or converted media developed around cartridge dimensions, assembly requirements and custom porous component geometry.
Appliance and humidifier filters
Functional porous structures considered for humidifiers, consumer appliances and related compact filter systems.
Automotive filtration
Needle-punched media evaluated for relevant automotive air or fluid-management components, subject to project-specific qualification.
Documentation by material and application
Certifications, Compliance & Test Documentation
Documentation available for applicable materials and applications may include:
- ISO 9001:2015 Quality Management System
- SGS test reports
- RoHS compliance documentation
- REACH compliance documentation
- MSDS
- FDA-related food-contact test documentation
- Biocompatibility test documentation
- BS 5852 flammability test documentation
- CA117-related flammability test documentation
- 16 CFR Part 1633-related test documentation
The applicable documentation depends on the selected material, specification and end-use application. Please contact Viora Materials to confirm the documentation available for your specific project.
What to include in your RFQ
Give the material team a practical starting point.
Known values help narrow the structure and validation plan. Unknown items can remain open for technical discussion.
- Application and required function
- Material / fiber preference
- Basis weight / GSM
- Thickness
- Width and roll dimensions
- Required absorbency or filtration function
- Hydrophilic / hydrophobic requirement
- Downstream converting process
- Testing / compliance requirements
- Expected order volume
Application-led sourcing
Send an RFQShare the function, format and known requirements.
Viora will review the project and coordinate the next material-evaluation step with relevant specialized manufacturing partners.