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Features
High mechanical strength
Large media surface
Fully reinforced media bonded onto your wire support grid
Mixture of cotton and synthetic sheets media
Frame: Moisture tolerant cardboard/Metal: Galvanized steel
Application
Pre filter for comfort air cooling applications.
| Quantity: | |
|---|---|
Cardboard Panel Air Filter is a cost-effective pre-filter designed exclusively for air conditioning units (AC units). It uses a mixture of cotton and synthetic sheet media, reinforced with a wire support grid, and framed with moisture-tolerant cardboard or galvanized steel. As the first line of defense in HVAC systems, it captures large particles (≥5μm) such as dust, lint, and pollen—protecting downstream high-efficiency filters (e.g., HEPA) from clogging. With a G4 filter class and 90% filtration efficiency, it ensures consistent air flow for comfort cooling in commercial, residential, and light industrial spaces, while its standard dimensions and easy installation reduce maintenance hassle.
Dimension (mm) | Rated airflow (m³/h) | Initial pressure drop (Pa) | Final pressure drop (Pa) | Filter object (μm) | Filtration efficiency (%) | Filter class |
595*595*25 | 2400 | <55 | <250 | ≥5 | 90% | G4 |
495*495*25 | 1650 | <55 | <250 | ≥5 | 90% | G4 |
295*595*25 | 1200 | <55 | <250 | ≥5 | 90% | G4 |
595*595*46 | 3400 | <75 | <250 | ≥5 | 90% | G4 |
495*495*46 | 2400 | <75 | <250 | ≥5 | 90% | G4 |
295*595*46 | 1700 | <75 | <250 | ≥5 | 90% | G4 |
595*595*96 | 3400 | <85 | <250 | ≥5 | 90% | G4 |
495*495*96 | 2400 | <85 | <250 | ≥5 | 90% | G4 |
295*595*96 | 1700 | <85 | <250 | ≥5 | 90% | G4 |
The media is fully bonded to a wire support grid, preventing deformation under continuous air flow. This ensures consistent filtration performance and avoids media collapse in AC units.
Frames are available in moisture-tolerant cardboard (for dry environments like offices) or galvanized steel (for humid areas like basements). Cardboard frames reduce costs, while steel frames enhance durability—catering to different installation needs.
As a G4-class filter, it captures 90% of particles ≥5μm, reducing the load on downstream filters. This extends the service life of expensive HEPA/medium-efficiency filters, lowering overall HVAC maintenance costs.
The expanded media surface increases dust holding capacity, allowing the filter to operate for 2–3 months (in standard environments) before replacement—minimizing downtime.
Standard dimensions (e.g., 595×595mm, 495×495mm) fit most commercial/residential AC units. No special tools are needed for installation, saving maintenance time.
Commercial AC Units: Pre-filter for offices, shopping malls, and hotels—improving indoor air quality (IAQ) and ensuring smooth cooling.
Residential HVAC Systems: Captures dust and pollen in home AC units, reducing allergies for residents.
Light Industrial Cooling: Used in electronics assembly plants and small workshops to filter large dust particles before air enters comfort cooling systems.
HVAC Protection: Integrated into HVAC systems to protect evaporators, coils, and downstream filters from dust accumulation.
Align the filter with the AC unit’s air inlet to avoid air bypass; use foam gaskets for gaps (if needed).
Choose galvanized steel frames for humid areas (e.g., bathrooms, basements) to prevent cardboard frame damage from moisture.
Check the initial pressure drop monthly; replace the filter when it reaches the final pressure drop (<250Pa).
Do not tap or clean the filter to reuse it—this releases trapped dust back into the air and damages the media.
Cardboard is cost-effective for dry environments (e.g., office ACs). Steel frames are better for humid areas (e.g., basement ACs) to resist rust and moisture.
G4 is a European standard for pre-filters, meaning it captures 90% of particles ≥5μm. It handles large contaminants so downstream filters focus on small particles.
No. It is designed for comfort cooling (5℃–40℃). For high-temperature environments, use heat-resistant filters like glass fiber paint mist cotton.
Cardboard Panel Air Filter is a cost-effective pre-filter designed exclusively for air conditioning units (AC units). It uses a mixture of cotton and synthetic sheet media, reinforced with a wire support grid, and framed with moisture-tolerant cardboard or galvanized steel. As the first line of defense in HVAC systems, it captures large particles (≥5μm) such as dust, lint, and pollen—protecting downstream high-efficiency filters (e.g., HEPA) from clogging. With a G4 filter class and 90% filtration efficiency, it ensures consistent air flow for comfort cooling in commercial, residential, and light industrial spaces, while its standard dimensions and easy installation reduce maintenance hassle.
Dimension (mm) | Rated airflow (m³/h) | Initial pressure drop (Pa) | Final pressure drop (Pa) | Filter object (μm) | Filtration efficiency (%) | Filter class |
595*595*25 | 2400 | <55 | <250 | ≥5 | 90% | G4 |
495*495*25 | 1650 | <55 | <250 | ≥5 | 90% | G4 |
295*595*25 | 1200 | <55 | <250 | ≥5 | 90% | G4 |
595*595*46 | 3400 | <75 | <250 | ≥5 | 90% | G4 |
495*495*46 | 2400 | <75 | <250 | ≥5 | 90% | G4 |
295*595*46 | 1700 | <75 | <250 | ≥5 | 90% | G4 |
595*595*96 | 3400 | <85 | <250 | ≥5 | 90% | G4 |
495*495*96 | 2400 | <85 | <250 | ≥5 | 90% | G4 |
295*595*96 | 1700 | <85 | <250 | ≥5 | 90% | G4 |
The media is fully bonded to a wire support grid, preventing deformation under continuous air flow. This ensures consistent filtration performance and avoids media collapse in AC units.
Frames are available in moisture-tolerant cardboard (for dry environments like offices) or galvanized steel (for humid areas like basements). Cardboard frames reduce costs, while steel frames enhance durability—catering to different installation needs.
As a G4-class filter, it captures 90% of particles ≥5μm, reducing the load on downstream filters. This extends the service life of expensive HEPA/medium-efficiency filters, lowering overall HVAC maintenance costs.
The expanded media surface increases dust holding capacity, allowing the filter to operate for 2–3 months (in standard environments) before replacement—minimizing downtime.
Standard dimensions (e.g., 595×595mm, 495×495mm) fit most commercial/residential AC units. No special tools are needed for installation, saving maintenance time.
Commercial AC Units: Pre-filter for offices, shopping malls, and hotels—improving indoor air quality (IAQ) and ensuring smooth cooling.
Residential HVAC Systems: Captures dust and pollen in home AC units, reducing allergies for residents.
Light Industrial Cooling: Used in electronics assembly plants and small workshops to filter large dust particles before air enters comfort cooling systems.
HVAC Protection: Integrated into HVAC systems to protect evaporators, coils, and downstream filters from dust accumulation.
Align the filter with the AC unit’s air inlet to avoid air bypass; use foam gaskets for gaps (if needed).
Choose galvanized steel frames for humid areas (e.g., bathrooms, basements) to prevent cardboard frame damage from moisture.
Check the initial pressure drop monthly; replace the filter when it reaches the final pressure drop (<250Pa).
Do not tap or clean the filter to reuse it—this releases trapped dust back into the air and damages the media.
Cardboard is cost-effective for dry environments (e.g., office ACs). Steel frames are better for humid areas (e.g., basement ACs) to resist rust and moisture.
G4 is a European standard for pre-filters, meaning it captures 90% of particles ≥5μm. It handles large contaminants so downstream filters focus on small particles.
No. It is designed for comfort cooling (5℃–40℃). For high-temperature environments, use heat-resistant filters like glass fiber paint mist cotton.
