Extended Surface Medium Efficiency Air filter

  • Efficiency: M5 – F9 EN:779
  • Filter depth: 150-292mm available
  • Filter media: Synthetic
  • Frame material: Al alloy or Gal
  • Customized size&efficiency: Available
  • Design: Boxed or DTF or Flanged
  • Max Operating Temperature: 175˚F (79˚C)
  • Max Operating Humidity: 80%




Extended surface filter

To offer a better airflow rate, it is a good idea put for pleats on the air filter, extended surface filter is this design for you. It is mini pleat filter media glass fiber, the efficiency is F7 F8, it provides more airflow area than normal pocket filters and rigid air filter.

The filter made of metallic frame and glass fiber, sealed with glue make sure no leakage, its nice airflow rate design help is become a pre air filter for some HEPA filter in cleanroom ventilation system.

Extended Surface Air Filter for Industrial Air Quality Control

the extended surface air filter captures most of the air pollutants before they enter the air handler units, clean rooms etc. it is a necessary filter for industrial buildings, commercial buildings and even personal housing. the extended surface filter media support long-term usage and larger dust holding, lower resistance.

the advantages of using an extended surface air filter

  • Longer usage —- save the cost of replacement
  • Lower resistance —- save electricity energy
  • High efficiency —- remove dust 90-99%
  • Large dust holding ability
  • Reliable construction, durable, stable
  • Heavy-duty ventilation available
  • Customized sizes are welcome

How many types of design?

It can be designed like a paper / metal framed pleated primary efficiency air filter, Multi-Pocket, V bank / V Cell Compacted, Deep pleated, Mini pleated. No matter what construction they are, they all can be called extended surfaces.

How long to replace them in the air handler unit?

It depends on the inlet air quality, if there are a lot of dust and other pollutants, they will get clogged up quickly. Adding coarse filtration is recommended in this case.

extended surface air filter pleated cardboard frame


Specifications and Details

Efficiency M5 – F9 EN:779
Filter depth 150mm, 220mm, 292mm available
Filter media Synthetic
Frame material Al alloy or Gal
Space Plastic bar or metal frame
Customized size&efficiency Available
Design Boxed or flanged or DTF
Max Operating Temperature 175˚F (79˚C)
Max Operating Humidity 80%

Most common size for extended surface filter

Item No Size(mm) Air flow rate Pressure drop Efficiency Filter Area
ES-2150F5 287*592*150 1200m³/h 75Pa F5 EN:779 2m²
ES-2150F6 287*592*150 1200m³/h 85Pa F6 EN:779 2m²
ES-2150F7 287*592*150 1200m³/h 95Pa F7 EN:779 2m²
ES-2150F8 287*592*150 1200m³/h 115Pa F8 EN:779 2m²
ES-5150F5 592*592*150 2500m³/h 75Pa F5 EN:779 4m²
ES-5150F6 592*592*150 2500m³/h 85Pa F6 EN:779 4m²
ES-5150F7 592*592*150 2500m³/h 95Pa F7 EN:779 4m²
ES-5150F8 592*592*150 2500m³/h 115Pa F8 EN:779 4m²
ES-5292F5 592*592*292 5000m³/h 75Pa F5 EN:779 8m²
ES-5292F6 592*592*292 5000m³/h 85Pa F6 EN:779 8m²
ES-5292F7 592*592*292 5000m³/h 95Pa F7 EN:779 8m²
ES-5292F8 592*592*292 5000m³/h 115Pa F8 EN:779 8m²

Customized size is available, air pressure drop ± 15% around;