Advantages of Filtedge Box Filters
With mature manufacturing experience and strict quality control system in the field of industrial air filtration, FiltEdge can provide you with stable and reliable box filters and HVAC box filters solutions. With stable performance and batch consistency, FiltEdge’s products are able to meet the long-term operational requirements of various air handling systems. At the same time, the perfect supply chain and efficient delivery ability, help to reduce the procurement and operation risk, is your reliable box air filters supplier partner!
- Factory Direct
- Controlled delivery
- Stable production capacity
- Guaranteed quality
- Strict quality control system
- Perfect export service

What is Box Filters?
Box Filters are also known as rigid box filters or deep pleated filters, which have better filtering area and dust capacity than flat filters. Box Filters are outstanding in filtration efficiency, high dust capacity and air handling capacity, which effectively reduces consumption, reduces replacement frequency, better protects the back-end equipments, and saves more cost for you.
Box Filters Product Types
Filtedge In order to meet the requirements of different air handling systems in terms of air volume, space and filtration efficiency, box filters are available in a variety of configurations, which can provide you with efficient and stable air box filters for your working conditions.

Mini-Pleat box filters utilize a high-density pleat design to provide a larger filtration area within a certain space, which is suitable for AHUs and commercial HVAC systems with limited space, and can reduce the frequency of replacement, lowering your costs.

Deep pleated box filters have enlarged pleat spacing and deeper filter media, providing high capacity and stable low resistance operation. They are suitable for industrial environments with high dust concentration and large HVAC systems, ensuring efficient and long-lasting operation of air handling systems.

Rigid cell filters adopt reinforced cell structure, aluminum separated box filters is just one of them, it can keep the air filter in high airflow operation pleats do not change shape, to ensure long-term stability, applicable to industrial ventilation and air handling units, is the ideal choice for high airflow working conditions.

V-type box filter arranges several groups of V-shaped filter media in a rigid frame, realizing large airflow and low resistance operation. It is suitable for large shopping malls, industrial plants and clean rooms, providing the best solution for your air filtration system.
Related Products of Box Filters
Filtedge has a wide range of industrial air filtration products. In addition to box filters, the following products are also available for your use.
Commercial Air FilterAir filters for commercial HVAC systems, combining efficiency and airflow, widely used in office buildings and public spaces.
Washable Air FilterWashable and reusable air filters reduce replacement costs and are suitable for low to medium filtration requirements.
Cassette FilterCompact cassette filters for space-constrained systems, offering consistent filtration performance and easy installation.
Custom Size Air FilterCustomized air filters with non-standard sizes are available to meet the installation and performance requirements of different equipment and systems.
Panel FiltersPanel filters are commonly used in the primary filtration stage, featuring low cost and easy replacement.
Hepa FilterHigh-efficiency air filters that can effectively remove tiny micron-sized airborne particles, mostly used in cleanrooms and high-standard air environments.
Coarse FiltersCoarse filters are used for primary filtration, with strong interception of large particles, protecting the back-end high-efficiency filtration system.
Ceiling FilterUsed in the top air supply system of clean rooms to provide uniform airflow and stable filtration to ensure a clean environment.
Features of Box Filters
FiltEdge Box Filters are industrial air filter solutions directly manufactured in our own factory, suitable for commercial buildings, and industrial ventilation system air handling units, we focus on global customers, we can provide fully customized and high-quality products, with many years of experience, we can provide you with reliable technical support.

Compared with traditional flat filters, the dust holding capacity is about 2-4 times higher, which can significantly reduce the frequency of replacement and lower maintenance costs.

The initial pressure drop is usually 60-120pa, which effectively reduces the energy consumption of the fan and saves operating costs.

With pleated design, the filter area of Box filters is increased by 2-5 times, which realizes higher filtration efficiency under the same filter area.

The airflow of single Box filters can reach 2000-4500mm³/h, which is more suitable for large HVAC and industrial systems.

The high quality sealing design allows for zero by-pass and ensures that all air passes through the filter media, thus increasing filtration efficiency.

Box filters can be used with rigid spacers to prevent the filter media from collapsing and to ensure filtration efficiency.

Can be operated in environments with a relative humidity of up to 90% and a maximum temperature of up to 240°C.

The modular design of box air filters in standard sizes allows for quick disassembly and reduces maintenance downtime.
Stable Quality of Box Filters
In the face of customers’ concern about the unstable performance of box filters and the big difference in life span, we have replaced the fully automatic production equipment since 25 years ago, and the raw materials must comply with the ISO10680 standard, and we will carry out a strict inspection of the products out of the warehouse, which can completely ensure that each box filters have stable and consistent filtration effect, so that you don’t have to worry about the quality of different batches of products. Box filters reduce your maintenance costs.


Box Filters Reduce Your Maintenance Costs
In order to address the problem of high replacement frequency and maintenance costs, we have introduced a fully automated folding machine, the pleat depth and spacing can be flexibly adjusted to easily achieve a high dust capacity design, effectively increase the filtration area and dust capacity of the Box filters, optimize the sealing process, and directly and fundamentally reduce your operating costs.
What are the Advantages of Being a Filtedge Box Filters Manufacturer?


Filtedge has more than 20 years of experience in the production of air filtration products. The 35,00 m² ISO 7 (Class 10,000) clean assembly plant, equipped with 5 high-end automatic paper folding machines, 4 ultrasonic bag forming machines, 2 glue filling systems, 3 high-precision particle detectors, air resistance testing stations, etc., ensures a stable quality and a capacity of tens of thousands of square meters of filtration area per day.
After several years of development, serving more than 10,000+ customers, our successful cases are spreading over 100 countries all over the world, attending more than 30 important exhibitions, and forming long-term cooperation concerns with different market engineering companies, system integrators and brand customers. At the same time, we have perfect after-sales service, also can provide you with technical support at any time 24 hours, won the praise of many customers, so we have the strength to become your best Box filters manufacturer!
Box Filters Application Scenarios
Whether you are managing commercial HVAC systems, industrial ventilation equipment, air handling units (AHUs), clean rooms or medical and pharmaceutical facilities, Box Filters can provide you with stable and efficient air filtration solutions. By choosing our products, you can reduce maintenance costs, ensure air quality, and keep your system running reliably over the long term, providing safe, reliable air management for your work environment.

Filtedge Box Filters are widely used in commercial HVAC systems in office buildings, shopping malls and public buildings to effectively remove dust and particles from the air and improve indoor air quality. The product structure is stable, adapting to large air volume, long time operation, reducing maintenance frequency, providing a comfortable and healthy air environment for crowded places.

Among industrial ventilation equipment, Box Filters are designed to cope with dust and particulate contamination in production processes, and are suitable for use in machine building, metal working and heavy industrial environments. Their rugged construction ensures continuous operation at high air volumes and under complex conditions, improving shop floor air quality, protecting equipment and reducing system maintenance costs.

Box Filters are key filter components in Air Handling Units (AHUs) for pre-filtration or intermediate filtration stages. Designed to meet the needs of different system sizes and air volumes, Box Filters ensure a steady flow of air, effectively improving overall air handling efficiency and providing reliable protection for your back-end high-efficiency filtration system.

In cleanroom air systems, Box Filters control the concentration of particulate matter in the air to meet the stringent cleanliness requirements of industries such as electronics manufacturing and biotechnology. Their consistent filtration performance reduces the introduction of contaminants into critical areas, ensuring that your manufacturing processes are stabilized and your products are of reliable quality.

Filtedge Box Filters are widely used in air purification systems in hospitals, laboratories and pharmaceutical manufacturing facilities to effectively reduce the risk of airborne particulate contamination. Consistent filtration ensures a safe and clean environment, supporting the daily operations and compliance requirements of medical and pharmaceutical facilities.
Box Filter Technical Specifications
- Box Filter Technical Specifications
| Parameter | Specification |
| Nominal Size | 24″×24″×12″ |
| Actual Size | 23.5″×23.5″×11.5″ |
| Face Velocity | 2.5 m/s |
| Efficiency (ASHRAE 52.2) | MERV 11–15 |
| Initial Pressure Drop | 90–120 Pa |
| Final Pressure Drop | 300–450 Pa |
| Service Life | 6–12 months |
| Energy Class | A / A+ |
Testimonials
Common sizes for standard HVAC and AHU systems include 24x24x12, 24x24x6, etc. The actual selection should be based on the airflow, the system, and the size of the filter. The actual selection should be based on airflow, system resistance and filtration efficiency.
Yes, HEPA box air filters are specifically designed for use in locations where high efficiency air purification is required, such as cleanrooms, medical and pharmaceutical facilities.
They can capture 99.97% of particles (≥0.3 microns) and are typically used with metal or aluminum frames to ensure structural stability.
Box filters generally refer to any square or rectangular air filter, while air box filters emphasize filters installed in an Air Handling Unit (AHU) or ductwork. Both are similar in construction, but the application of air box filters is more focused on the interior of the HVAC system.
Metal or Aluminum Frame: Suitable for industrial high temperature, high humidity or high air volume environments.Rigid Cell Filters: Suitable for places that require long term use and high durability.HEPA Filter Media: Suitable for medical, pharmaceutical and cleanroom applications where high air cleanliness is required.Common Synthetic Fiber Media: For commercial buildings or general HVAC systems.
Replacement intervals are typically 3-12 months, depending on the application and the level of air contamination. Industrial environments or locations with high dust concentrations require more frequent replacement.
Yes, many manufacturers support customization based on system airflow, resistance, efficiency level, and frame material (e.g., aluminum, metal) to fit different HVAC or air purification systems.
Furnace filters are designed for residential or commercial furnaces and are typically smaller in size and have lower resistance, while Box Filters are more commonly used in AHU or large HVAC systems, can handle larger air volumes, and can be used with high-efficiency filter media such as HEPA.






