HEPA FILTER 20 x 20 x 12 (11.5) 1350 CFM 99.99% Mini Pleat

HEPA FILTER 20 x 20 x 12 (11.5) 1350 CFM 99.99% Mini Pleat

This high-efficiency mini pleat HEPA filter is designed for commercial, industrial, and critical air filtration applications that require very high particle removal efficiency and reliable airflow performance. The filter is constructed with micro glass fiber media in a galvanized steel frame with a flat neoprene gasket.

This 20x20x12 HEPA filter is rated 99.99% at 0.3µm and 99.95% at MPPS and is commonly used in HVAC systems, clean environments, and process applications where high-efficiency particulate removal is required. This is a HEPA filter and is not an ASHRAE MERV-rated filter.

• OEM Make: DAMN Filters
• Part Number: HHH44APN1D3
• Filter Category: High-efficiency mini pleat HEPA filter
• Nominal Size: 20 x 20 x 12 in
• Filter Size Category: 20x20x12 HEPA filter
• Actual Dimensions (in): 19.99 W x 20.01 H x 11.49 D
• Filter Media: Micro Glass Fiber
• Frame: Galvanized Steel
• Gasket: Flat neoprene
• Rated Airflow: 1,350 CFM
• Initial Pressure Drop: 1.26 in. w.g. at rated airflow
• Final Pressure Drop: 2.40 in. w.g.
• Operating Temperature: 176°F
• Filter Efficiency: 99.99% @ 0.3µm / 99.95% @ MPPS
• Protection Grids: Powder Coated Metal on Both Sides
• Separator Style: Hotmelt

Applications

• Hospitals and healthcare HVAC systems
• Laboratories and clean environments
• Museums and archives
• Pharmaceutical manufacturing
• Food processing applications
• Microelectronics and critical process environments

Why Choose a Mini Pleat HEPA Filter?

• High-efficiency particulate removal for critical air applications
• Compact mini pleat design for high media area and stable airflow
• Suitable for commercial, industrial, and process filtration systems
• Reliable construction for demanding HVAC and clean air applications

Fits Most HEPA Filter Housings Requiring 20 x 20 x 12 Size

This 20 x 20 x 12 HEPA filter is designed for systems and housings that accept this nominal size and airflow range. Always confirm actual dimensions, gasket style, airflow requirements, and final resistance limitations before ordering a replacement.

Performance Notes

Actual performance will vary depending on system design, airflow, final resistance limits, and application conditions. HEPA filters are commonly selected where very high particulate removal efficiency is required and where standard MERV-rated filters are not sufficient.

Common search terms for this product include: 20x20x12 HEPA filter, 20 x 20 x 12 HEPA filter, mini pleat HEPA filter, 1350 CFM HEPA filter, and 99.99% HEPA filter.

Volume pricing is available on larger quantities of this HEPA filter.

HEPA Filter Data Sheet (PDF): DFHFX Series HEPA Filter Specifications

DAMN Filters offers a full line of HEPA and high-efficiency filters.

If you do not see the filter you are looking for or need help confirming fit, give us a call at (844) 605-3266 or contact us.

---

Found a lower price? Let us know.

Make an offer