Air filtration sourcing
About Air Filter Spec
Air Filter Spec organizes Hengfeng product knowledge into a clear sourcing path for international technical buyers.
Specification boundary: Published values will be added only when they are linked to the exact product, model, standard and test condition.
What this site covers
Hengfeng product knowledge, organised for technical sourcing.
The source materials cover filter media, primary and medium efficiency HVAC filters, high efficiency filters and home appliance filter formats.
Air Filter Spec turns that broad catalogue into separate product, application and RFQ pages. It does not publish certificates, capacity, customer names, delivery claims or testing capability until each item has approved evidence.
How evidence is handled
Every technical value should remain connected to the product, model, standard, airflow or face velocity, and source version.
- Product
- One family and one configuration
- Condition
- Standard, flow and environment
- Source
- Document, table and version
- Status
- Approved, conditional or blocked
Prepare a workable enquiry
Match the quote to your actual operating conditions.
Send the application, dimensions, efficiency standard, airflow or face velocity, pressure drop limit, materials, seal, quantity and destination when available.