G1 Primary Filter
G1 primary filter for coarse pre-filtration in ventilation and air-handling systems.
View DetailsAIR FILTRATION PRODUCTS
Primary Filter G1-G4
Primary filter family covering G1, G2, G3 and G4 grade selections for project-specific pre-filtration requirements.
G1G2G3G4
AIR FILTRATION PRODUCTS
Primary Filter G1-G4 Products
G2 Primary Filter
G2 primary filter for basic dust interception and upstream HVAC system protection.
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G3 Primary Filter
G3 primary filter for HVAC pre-filtration and protection of medium-efficiency filter stages.
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G4 Primary Filter
G4 primary filter for higher-demand pre-filtration in cleanroom HVAC and industrial air systems.
View DetailsPrimary Filter G1-G4 Selection
BAIHANGDA supplies this filtration family across the listed grade range. Final construction is selected according to airflow, dimensions, frame/media requirement and installation method.
Available GradesG1 / G2 / G3 / G4
Dimensions & ConstructionSelected or customized according to the installation requirement.
Airflow & IntegrationMatched to the cleanroom, HVAC or air-filtration system requirement.
Filter Classification Note
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G/F grade terminology is retained because it is widely used in product selection and replacement inquiries. For projects specifying ISO 16890, please confirm the required ePM classification and operating conditions; final filter selection follows the confirmed project specification.
mingda.shop technical catalog
Primary Filter G1-G4 — Engineering specification guidance
The Primary Filter G1-G4 catalog on mingda.shop groups equipment by engineering function so project teams can compare configurations without treating different duty points as interchangeable.
Application review
For filtration products, the review covers filter class, rated airflow, initial resistance, media construction, frame material, gasket or gel seal, face velocity and the requested inspection or test standard.
Selection factors
BAIHANGDA checks the requested performance against the actual installation and operating conditions. Final dimensions and configuration are confirmed from project data or drawings.
RFQ checklist
For a useful quotation, provide dimensions, quantity, target grade, airflow or room requirement, installation position, power supply where applicable, destination and any drawing or validation requirement.
Technical page reference: MD-56E74E2A