MEDIUM FILTER

Medium and Fine Filter refers to a specific type of air filter designed to capture particles of a certain size range. Air filters are commonly used in heating, ventilation, and air conditioning (HVAC) systems, as well as in various industrial and cleanroom applications.

Medium and fine filter falls between low-efficiency filters (pre filters) and high-efficiency filters (such as EPA, HEPA, or ULPA filters) in terms of particle capture efficiency. Medium and fine filters are designed to capture particles that are larger than those captured by low-efficiency filters but smaller than those captured by high-efficiency filters.

The specific particle size range that a medium and fine filter can capture depends on the filter’s design and specifications. These filters are often made from materials like synthetic, glassfibers, microglass fiber, or a combination of materials that provide a good balance between airflow and particle capture efficiency.

The classification of air filters is usually done using the Minimum Efficiency Reporting Value (MERV) rating. Filters with a MERV rating between 5 and 13 are often considered medium-efficiency filters. They are effective at removing common airborne particles like dust, pollen, mold spores, and pet dander, contributing to improved indoor air quality. Medium filters are commonly used in residential, commercial, and industrial settings where a balance between cost and filtration performance is desired.

In addition to the MERV (Minimum Efficiency Reporting Value) rating system, there are other classification systems used to assess the efficiency of air filters,  EN 779:2012 Efficiency and ISO 16890.

EN 779 standard, is a European standard that classifies air filters based on their efficiency. The efficiency is determined by measuring the filter’s ability to remove synthetic aerosol particles of specified sizes. For medium and fine filter, the classes range from M5 to F9, filters with higher efficiency classes are capable of capturing smaller particles.

ISO 16890, is an international standard that provides a method for testing and classifying air filters based on their particle removal efficiency. Unlike EN 779, ISO 16890 considers the filtration performance with respect to particulate matter (PM) size ranges, ePM1, ePM2.5, and ePM10, indicating the efficiency of the filter for each particle size range.

Box / Pleated Series                                          V-Bank Series                                Pocket Series

1. Plated Filters

Pleated filters have a compact design with closely spaced pleats, offering high efficiency, larger surface area due to their accordion-like design. This allows for more particle capture and longer filter life. Pleated filter using for residential, commercial HVAC systems, and cleanroom.

2. Pocket Filters

These filters have multiple pockets or bags containing filter media, providing a larger filtration area. Pocket filter applied for commercial and industrial HVAC systems.

3. V-Bank or V-Cell Filters

V-Bank or V-Cell filters use a V-shaped design to increase the surface area, making them more efficient in capturing medium-sized particles. V-Bank filter used for HVAC systems in commercial and industrial settings.