China KWS-005 Air Filter Media Panel System - Galvanised Iron Suppliers & Factory for Customized Solutions
Product Introduction
The primary filter is the ‘front guard’ of the air purification system, mainly used to intercept large particles above 5 microns in the air, such as dust, hair, fibres and pollen. As the first layer of a multi-stage filtration system, its core role is to protect the back-end high-efficiency filters (such as HEPA) from being clogged by large particles, thus extending the overall equipment life and reducing energy consumption.
In industrial workshops, commercial buildings and domestic air conditioning, the need for primary filters is reflected in three ways:
Filter 60%-80% of coarse particles, reduce the frequency of high-efficiency filter replacement, saving maintenance costs.
Prevent large particles from covering the pores on the surface of the high-efficiency filter, maintaining the stability of the system's airflow and purification efficiency.
Washable or replaceable metal mesh, chemical fibre materials are suitable for scenes with high dust concentration (e.g. building ventilation, factory pre-treatment).
Product Characteristics
Technical Parameter
| Name | Size | Rated airflow | Efficiency | Initial resistance | Suggested ultimate resistance |
|---|---|---|---|---|---|
| KWS-005 | 595*595*46 | 3000m³/h | G4（35%） | ≦55Pa | ≦110Pa |
| KWS-006 | 295*595*46 | 1500m³/h | G4（35%） | ≦55Pa | ≦110Pa |
| KWS-007 | 595*595*96 | 3800m³/h | G4（35%） | ≦55Pa | ≦110Pa |
| KWS-008 | 295*595*96 | 1900m³/h | G4（35%） | ≦55Pa | ≦110Pa |
Applications
Pre-filtration of general air-conditioning and ventilation systems to avoid the accumulation of dust and pollution within the system.
Pre-filtration of large air compressor.
Centralized ventilation and air-conditioning systems and return air filtration in clean rooms to prolong the service life of high-efficiency filters at the back stage.
Pre-filtration of general industrial plant ventilation system to achieve general clean air requirements.
Frequently Asked Questions (FAQ)
The primary filter acts as the first line of defence to intercept large particles above 5 microns (such as dust, hair, fibres, and pollen). Its primary function is to protect back-end high-efficiency filters (e.g., HEPA) from clogging, extending overall equipment life and lowering energy consumption.
By capturing 60%–80% of coarse particles, it prevents high-efficiency filters from rapid clogging. Statistics show that without a primary filter, high-efficiency filter lifespan is shortened by more than 40% on average, leading to much higher replacement costs.
The outer frame is constructed from durable galvanised steel or aluminium. The media consists of high-quality polyester synthetic fibre attached to a folded rhombic mesh or welded wire mesh for enhanced structural stability.
The standard available filtration ratings are G3 (EN779) / MERV6 (ASHRAE 52.2) and G4 (EN779) / MERV8 (ASHRAE 52.2).
They are commonly used in general HVAC systems, large air compressor pre-filtration, clean room return air systems, and industrial workshop ventilation systems.
Yes, beyond standard models (e.g., KWS-005 through KWS-008), special sizes and customized technical specifications can be manufactured according to specific client requirements.
