A HEPA filter membrane is a high-performance air and dust filtration device, guaranteed to meet the EN 1822 standard, ranging from H10 to H17. Among these, the most commonly used filters today are HEPA H13 and HEPA H14. So, what is the difference between these two types? Let’s explore more about them with VCR in the article below!

The Similarity Between HEPA H13 and HEPA H14 Filter Membrane

Regarding the structure

HEPA filter membrane (HEPA filter) are essential components in air purifiers. Like other types of HEPA filter, both the HEPA H13 and HEPA H14 filter share the same structure. These two filter membranes consist of two main parts: the frame and the filter membrane.
  • Frame: Typically made from materials such as aluminum, galvanized iron (GI), or stainless steel, the frame gives the filter its shape and helps protect the inner components of the filter membrane.
  • Membrane: The membrane is made from fiberglass, arranged in a random mesh pattern, with a diameter ranging from 0.5 to 2.0 micrometers. This structure enables HEPA filters to capture a large number of very small particles, such as pollen, mold spores, pet dander, and smoke, which can cause respiratory issues and allergies - particles that ordinary vacuum cleaners cannot filter out.

HEPA H13 and HEPA H14 Filter

About the Application

Both the HEPA H13 and HEPA H14 filter membranes are air purifiers that meet the international EN 1822 standards, capable of filtering particles as small as 0.3 microns. As a result, they are widely used in various fields, particularly in the construction of cleanroom in environments that require high levels of cleanliness and safety, such as schools, hospitals, medical facilities, industries, marine applications, laboratories, and other spaces populated by people.

The Difference Between HEPA H13 Filter Membrane and HEPA H14

Dust Filtration Efficiency of HEPA H13 and HEPA H14 Filter Membranes

The dust filtration efficiency is the primary factor to evaluate the difference between the HEPA H13 and HEPA H14 filter membranes. According to the EN 1822 standard, the higher the HEPA filtration level and the tighter the design, the greater the dust removal efficiency. Therefore, there is a clear distinction in dust filtration efficiency between the HEPA H13 and HEPA H14 filters. To better understand the difference between these two filters, refer to the performance table of HEPA H13 and HEPA H14 filters below.
Filter classification Total value Local value
Performance (%) Penetrating particles(%) Performance (%) Penetrating particles(%)
H13 ≥99,95 ≤0,05 ≥99,75 ≤0,25
H14 ≥99,995 ≤0,005 ≥99,975≤ ≤0,025
As seen in the performance table above, the HEPA H14 filter has a higher dust and cleaning efficiency than the HEPA H13 filter. Due to its superior efficiency, the HEPA H14 filter is preferred for projects that require high cleanliness levels, such as ISO Class 10 or ISO Class 100 cleanroom. On the other hand, the HEPA H13 filter membrane is commonly used in lower-grade cleanroom.
The Difference Between HEPA H13 Filter Membrane and HEPA H14

Standard Size and Airflow of HEPA H13 and HEPA H14 Filters

Since the dust filtration efficiency of these two filters differs, the airflow in filters of the same size is also slightly different.

Common standard size of HEPA H13 filter membrane

Size Air flow Head pressure difference Replacement pressure difference
305 x 305 x 69 (mm)
250 (M3/H)
 150 Pa 600 Pa
610 x 610 x 69 (mm) 1000 (М3/Н)
915 x 610 x 69 (mm) 1500 (M3/H)
305 x 305 x 150(mm) 450 (M3/H) 250 Pa
305 x 610 x 150 (mm) 850 (M3/H)
610 x 610 x 150 (mm) 1700 (M3/Н)
305 x 610 x 292 (mm) 1700 (M3/H)
610 x 610 x 292 (mm) 3400 (M3/H)
610 x 762 x 292 (mm) 3600 (М3/H)

Common standard size of HEPA H14 filter membrane

Size Air flow Head pressure difference Replacement pressure difference
305 x 305 x 69 (mm) 250 (M3/H) 150 Pa 600 Pa
610 x 610 x 69 (mm) 1000 (М3/Н)
915 x 610 x 69 (mm) 1500 (M3/H)
610 x 610 x 292 (mm) 3400 (M3/H)
610 x 762 x 292 (mm) 3600 (М3/H)
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