Pocket filters, also known as bag filters, are a type of air filter commonly used in HVAC systems to remove particles and contaminants from the air. They are called pocket filters because they consist of multiple pockets or compartments made of filter media.
The pockets are typically made of synthetic materials such as polyester or fiberglass, which have high dust-holding capacity and low resistance to airflow. The filter media is pleated to increase the surface area and enhance particle capture efficiency.
Pocket filters are available in various sizes and efficiencies to meet different air filtration needs. They are designed to capture and retain particles such as dust, pollen, mold spores, bacteria, and other airborne contaminants. The efficiency of pocket filters is usually expressed as a percentage of particle capture at a specific particle size, such as MERV (Minimum Efficiency Reporting Value) rating.
One advantage of pocket filters is their larger surface area compared to flat panel filters, allowing for higher airflow capacity and longer service life. They are commonly used in commercial and industrial applications, including office buildings, hospitals, data centers, manufacturing facilities, and cleanrooms.
Regular maintenance and replacement of pocket filters are essential to ensure their optimal performance. The frequency of replacement depends on factors such as the level of air pollution, filter efficiency, and the operating conditions of the HVAC system.
- Self-supporting pockets
- No special mechanical support required
- Simple and light weight
- Polyester bags
- Low pressure drop
- Long service life
- Small transport volume
- Rigid bag model available (RB)
- Easy installation
- Filter Class; G3 – G4
- Media; Polyester
- Frame type; Galvanized sheet metal
- Final Pressure Drop; 250 Pa
- Operating Temperature; 75° C
- Application; Pre-filter for HVAC