High Capacity Deep-Pleat Design
Increased pleat count provides greater effective media surface area within the same external footprint, supporting high airflow and increased dust-holding capacity.
Description
High-Efficiency Industrial & Commercial HVAC Filtration
High Capacity HEPA Air Filter 24x24x12
AccuraFil High Capacity HEPA filters feature a deep-pleated, increased-pleat-count design that provides a large effective filtration media area within a compact filter footprint. This high-capacity HEPA construction is designed for high-volume HVAC applications requiring high-efficiency particulate filtration, reliable airflow, and extended filter service intervals.
Manufactured with micro glass fiber media and corrugated aluminum separators with hemmed edges, the HC HEPA filter is available in EN 1822 E12, H13, and H14 grades. Every filter is individually tested according to EN 1822, with test results labeled and affixed to the filter for unit-level traceability.
Key Benefits
High-Efficiency HEPA Filtration
Micro glass fiber media is available in EN 1822 E12, H13, and H14 grades for demanding particulate filtration applications.
Individually Tested Per EN 1822
Each filter is individually tested according to EN 1822, with test results documented and affixed to the filter for traceability.
Durable Sealed Construction
Corrugated aluminum separators, two-part polyurethane sealant, and PU or Neoprene gasket options provide a robust filter and housing sealing system.
Technical Specifications
| Filter Type | High Capacity Deep-Pleat HEPA Filter with Increased Pleat Count |
|---|---|
| EN 1822 Grades | E12 / H13 / H14 |
| MPPS Efficiency | ≥99.5% / ≥99.95% / ≥99.995%, respectively |
| Efficiency at 0.3 µm | ≥99.97% / ≥99.99% / ≥99.999%, respectively |
| Filter Media | Micro Glass Fiber |
| Media Separator | Corrugated Aluminum Separator with Hemmed Edges |
| Rated Airflow | 1700 CFM |
| Initial Pressure Drop | 1.10 in. w.c. |
| Recommended Final Pressure Drop | 2.00 in. w.g. |
| Frame Materials | GI / Stainless Steel / Aluminum / or MDF |
| Media Sealant | Two-Part Polyurethane |
| Gasket Options | Seamless Polyurethane (PU) / Neoprene |
| Maximum Operating Temperature | 80°C (176°F) |
| Fire Classification | UL900 Classified |
| Testing | Individually Tested Per EN 1822 For Leak-Proof Performance |
HEPA Filter Frame Designs: Double-Turn Flange vs. Box-No-Header
HEPA filters are available with different frame and header designs to match the existing filter housing or holding frame. Choosing the correct frame style is important for proper installation, sealing, filter support, and maintenance access. Always match the replacement HEPA filter to the existing housing design rather than selecting a frame based only on nominal filter size.
Important:
Frame design is not interchangeable simply because the nominal filter size
is the same. Before ordering a replacement HEPA filter, verify the existing
housing's frame style, flange/header design, actual filter dimensions,
gasket or sealing arrangement, and installation orientation. Selecting the
wrong frame design can cause installation problems, inadequate sealing,
return shipping costs, restocking charges, and project delays.
⚠️ Important: Verify Actual HEPA Filter Dimensions Before Ordering
HEPA filters must be ordered and matched by their actual dimensions, not nominal dimensions. Incorrect measurements can result in installation misfit, return shipping fees, restocking charges, and project delays.
Nominal Size
24" × 24" × 12"
Actual Dimensions
23 3/8" × 23 3/8" × 11 1/2"
Before placing your order: Verify the actual width, height, and depth of your existing HEPA filter and confirm compatibility with your filter housing. This simple step can help prevent misfit issues, unnecessary return shipping costs, restocking charges, and installation delays.
Choosing the Right EN 1822 HEPA Grade
Select the appropriate HEPA efficiency grade based on the required particle removal performance, cleanroom classification, HVAC system design, and applicable facility requirements.
E12 HEPA Filter
≥99.5% MPPS efficiency. Suitable for general industrial applications and selected cleanroom pre-filtration requirements.
H13 HEPA Filter
≥99.95% MPPS efficiency. Designed for demanding applications including hospitals, pharmaceutical manufacturing, and controlled cleanroom environments.
H14 HEPA Filter
≥99.995% MPPS efficiency. Intended for applications requiring very high-efficiency particulate filtration, including critical cleanroom and aseptic environments.
High Capacity HEPA vs. Standard Capacity HEPA
The High Capacity (HC) HEPA design uses an increased pleat count within a deep-pleat construction to provide more effective filtration media area than the Standard Capacity (SC) design within the same external footprint.
The HC design is rated for 1700 CFM at an initial pressure drop of 1.10 in. w.c., compared with 1200 CFM for the standard-capacity design at the same initial pressure drop. This high-capacity construction is suited to applications where airflow requirements and extended service intervals are important.
HEPA Filter Construction & Sealing
Micro Glass Fiber Media
Micro glass fiber media provides the filtration medium for high-efficiency HEPA applications requiring E12, H13, or H14 performance.
Corrugated Aluminum Separators
Hemmed-edge corrugated aluminum separators help maintain consistent pleat spacing and effective airflow distribution through the deep-pleated media pack.
Polyurethane Media Sealant
Two-part polyurethane sealant bonds the media pack to the filter frame to provide durable filter construction.
PU & Neoprene Gasket Options
Seamless polyurethane and Neoprene gasket options are available according to the required housing sealing configuration.
Applications
AccuraFil High Capacity HEPA filters are designed for demanding commercial, industrial, healthcare, pharmaceutical, and controlled environment HVAC applications, including:
- Pharmaceutical and biotech manufacturing facilities
- GMP production environments
- Hospitals and healthcare facilities
- Operating theatres and critical care environments
- ISO-classified cleanrooms
- Aseptic filling and controlled manufacturing areas
- High-volume industrial air-handling units
- Commercial and industrial HVAC systems requiring HEPA filtration
Reliable Performance in High-Demand Environments
The deep-pleated high-capacity construction provides increased filtration media area for demanding HVAC applications where high airflow, filtration efficiency, and extended service intervals are important operating requirements.
Pharmaceutical & Biotech Manufacturing
H13 and H14 HEPA configurations are suited to pharmaceutical, biotechnology, GMP manufacturing, aseptic processing, and controlled cleanroom environments requiring individually tested HEPA filtration.
Hospitals & Healthcare
H13 and H14 configurations support demanding healthcare HVAC applications including operating theatres, isolation areas, critical care spaces, and other environments requiring high-efficiency particulate filtration.
ISO Cleanrooms
High-efficiency HEPA filtration is suitable for controlled environments where validated particulate removal, documented filter testing, and reliable air-handling performance are required.
High-Volume Industrial AHUs
The 1700 CFM rated airflow of the HC design makes it suitable for high-volume industrial air-handling units where high-efficiency filtration and reduced maintenance frequency are important.
Individually Tested Per EN 1822
Every AccuraFil High Capacity HEPA filter is individually tested according to EN 1822. Testing verifies the performance and integrity of the finished filter rather than relying solely on batch sampling.
Test results are documented and affixed to each filter, providing unit-level traceability for applications where documented HEPA filter performance is an important procurement, commissioning, or validation requirement.
MPPS Efficiency and EN 1822 Classification
EN 1822 classifies high-efficiency filters using Most Penetrating Particle Size (MPPS) efficiency. The AccuraFil High Capacity HEPA product family is available in E12, H13, and H14 grades with progressively higher certified MPPS efficiency.
The product specifications also provide efficiency values at 0.3 µm for reference when comparing HEPA filtration requirements with specifications that use fixed-particle-size efficiency.
High Capacity HEPA vs. V-Bank HEPA
The High Capacity HEPA uses an increased-pleat-count deep-pleat construction and is rated at 1700 CFM with a 1.10 in. w.c. initial pressure drop. A V-Bank HEPA design can provide a larger total media area and higher airflow where housing design, airflow requirements, and available installation space support a V-bank configuration.
The best HEPA filter selection depends on required EN 1822 grade, airflow, initial and final pressure drop, filter dimensions, housing configuration, installation depth, and maintenance requirements.
Product Selection & Procurement
When replacing a high-capacity HEPA filter, verify the nominal filter dimensions, EN 1822 efficiency grade, rated airflow, initial pressure drop, final pressure-drop requirement, frame material, gasket type, operating temperature, and compatibility with the existing filter housing.
AccuraFil provides industrial and commercial air filtration products for facility managers, HVAC contractors, mechanical engineers, pharmaceutical facilities, healthcare organizations, cleanroom professionals, and procurement teams.
Frequently Asked Questions
What is a High Capacity HEPA filter?
A High Capacity HEPA filter is a deep-pleated HEPA filter designed with an increased pleat count to provide greater effective media surface area within the available filter footprint. This design supports high airflow and increased dust-holding capacity.
What EN 1822 grades are available?
The AccuraFil High Capacity HEPA filter is available in E12, H13, and H14 grades, with MPPS efficiencies of at least 99.5%, 99.95%, and 99.995%, respectively.
What does MPPS efficiency mean?
MPPS means Most Penetrating Particle Size. EN 1822 uses MPPS efficiency to evaluate HEPA filter performance at the particle size where filtration is most challenging.
How does the HC HEPA compare with the SC HEPA?
The High Capacity HEPA uses an increased pleat count within the deep-pleat design. It is rated for 1700 CFM at 1.10 in. w.c. initial pressure drop, compared with 1200 CFM for the Standard Capacity design at the same initial pressure drop.
What frame materials are available?
Available frame materials include galvanized steel (GI), stainless steel (SS), aluminum (AL), and MDF, depending on the selected configuration.
What gasket options are available?
The High Capacity HEPA filter is available with seamless polyurethane (PU) or Neoprene gasket options, depending on the required housing sealing configuration.
Is each HEPA filter individually tested?
Yes. Each High Capacity HEPA filter is individually tested according to EN 1822, and the test results are documented and affixed to the filter for unit-level traceability.
AccuraFil High Capacity HEPA Filters
AccuraFil High Capacity HEPA filters combine increased pleat count, deep-pleat construction, micro glass fiber media, individually tested EN 1822 performance, and multiple frame and gasket options for demanding commercial, industrial, healthcare, pharmaceutical, and cleanroom applications.
HEPA High-Capacity Deep-Pleat Air Filter – E12/H13