Cardboard filters are a type of filtration media made from compressed layers of cardboard or paperboard, which are designed to filter out particulate matter, gases, and other contaminants from liquids or air. These filters are often used in applications where a cost-effective and lightweight filtration solution is required. Cardboard filters are common in industries such as automotive, HVAC, liquid filtration, and even in some industrial processes.
- Frame: Water resistant cardboard.
- Filter media: Synthetic fiber or cotton-synthetic mixture.
- Grids: Water resistant cardboard.
- EN 779 Class: G4.
- Average arrestance: 92%（ASHRAE 52.1-1992）.
- MERV: MERV 9（ASHRAE 52.2-1999）.
- DIN 53438 Flammability: F1.
- UL 900 Standard: CLASS 2.
- Final pressure drop: (recommender) 200Pa -（maximum）250Pa.
- Max. air flow rate: 125% of nominal air flow rate.
- Max. operating temperature: 70℃.
- Max. relative humidity: 100%.
- Applications: Coarse particle filtration.
Description
Product Features of Cardboard Filter
- Cost-Effectiveness
Low cost: One of the main advantages of cardboard filters is their relatively low cost compared to other types of filters like metal, fabric, or high-end synthetic filters. They are often used in applications where budget constraints are a priority.
- Lightweight
Cardboard filters are light and easy to handle. This makes them suitable for applications where weight is a concern, such as in portable air filtration systems or smaller appliances.
- Environmental Friendliness
Being made from natural materials like paper or cardboard, these filters are biodegradable and can be recycled, making them an environmentally friendly option compared to some synthetic filters.
- Biodegradability
In some applications, where environmental concerns are significant, cardboard filters can break down naturally over time, reducing landfill waste and making disposal easier.
Structure Diagram of Cardboard Filter
Performance Parameters
|
Type |
Class |
Arrestance |
Dimensions |
Filtering surface (m2) |
Rated air flow (m3/h) |
Initial pressure drop (Pa) |
||
|
Length (mm) |
Height (mm) |
Depth (mm) |
||||||
|
CZB-45 |
G4 |
90-94% |
595 |
595 |
45 |
1.10 |
3000 |
80 |
|
CZB-45 |
G4 |
90-94% |
595 |
495 |
45 |
0.90 |
2500 |
80 |
|
CZB-45 |
G4 |
90-94% |
595 |
395 |
45 |
0.75 |
2000 |
80 |
|
CZB-45 |
G4 |
90-94% |
595 |
295 |
45 |
0.55 |
1500 |
80 |
|
CZB-45 |
G4 |
90-94% |
495 |
495 |
45 |
0.75 |
2000 |
80 |
|
CZB-45 |
G4 |
90-94% |
495 |
395 |
45 |
0.75 |
1500 |
80 |
|
CZB-95 |
G4 |
90-94% |
595 |
595 |
95 |
2.00 |
3500 |
100 |
|
CZB-95 |
G4 |
90-94% |
595 |
495 |
95 |
1.60 |
3000 |
100 |
|
CZB-95 |
G4 |
90-94% |
595 |
395 |
95 |
1.30 |
2300 |
100 |
|
CZB-95 |
G4 |
90-94% |
595 |
295 |
95 |
1.00 |
1750 |
100 |
|
CZB-95 |
G4 |
90-94% |
495 |
495 |
95 |
1.30 |
2300 |
100 |
|
CZB-95 |
G4 |
90-94% |
495 |
395 |
95 |
1.00 |
1750 |
100 |
Common Applications of Cardboard Filters
- Pre-filtration for air conditioning systems, air intakes, and other general air filtration areas, laminar flow purification ventilation and air conditioning systems.
- Pre-filtration for air cleanliness in food and pharmaceutical spraying workshops, air purification for constant temperature and humidity air conditioning fresh air units, and laminar flow purification operating rooms’ centralized ventilation systems.
Filmedia® Specializes in High-quality Cardboard Filters
Our filtration products have passed SGS and ISO9001 certification and are exported to Europe, North America, Southeast Asia, Africa and other regions. With our emphasis on quality and after-sales service, we have won a good reputation in the filtration industry.
