Fine Grade Bag Filters

About this General Ventilation HVAC Bag Filter

The General Ventilation HVAC Bag Filter is a high dust holding capacity, low pressure drop and long service life filter. It is ideal for use as a medium to high-efficiency final filter or as a prefilter to high-grade filters such as our HEPA filters. They are manufactured in our Dorset based, UK factory. Tapered pockets ensure smooth airflow and low resistance, for energy efficient operation. Available in a range of standard and custom sizes, for help ordering please contact our support team.

Characteristics of General Ventilation HVAC Bag Filter:

• Ultrasonically welded synthetic melt-blown fibre
• Fire testing according to DIN 53438-3 (F1)
• Humidity resistant up to 100% RH
• Temperature resistant up to max. 80°C
• Corrosion-resistant galvanized metal header

Applications For General Ventilation HVAC Bag Filter:

• Roof mounted air handling units (AHUs) for commercial buildings, hospitals and manufacturing facilities
• Air conditioning and other HVAC applications for offices, hospitals, computer centres, laboratories, supermarkets & more
• Pharmaceutical and food manufacturing, airports & general industry
• Pre-filtration (e.g. for HEPA filters)

Media Grade:

• M5 55% = White or tan, Initial resistance of 58Pa at rated airflow
• M6 65% = Green, Initial resistance of 65Pa at rated airflow
• F7 85% = Pink, Initial resistance of 80Pa at rated airflow
• F8 95% = Yellow, Initial resistance of 130Pa at rated airflow
• F9 >95% = White, Initial resistance of 168Pa at rated airflow

Final Recommended Pressure Drop: 3 times initial pressure drop or +100Pa, whichever is lowest.

Header Depth:

Header depth refers to the depth of the metal frame at the face of the filter. It is crucial for this measurement to be accurate to ensure a proper fit and maintain a tight air seal.

Pocket Depth & Pocket Number with recommended Airflow:

The pocket depth refers to the length of the individual pockets in the filter, with standard depths of 300, 380, 500, and 600mm.
The pocket number is the total count of individual pockets per filter, typically ranging between 3 and 10, depending on the filter width.
The recommended airflow is the maximum volume of air per hour advised for each size.

• 300mm (12″) 6 pockets at 1.2m/s, 8 pockets at 1.6m/s and 10 pockets at 2.7m/s
• 380mm (15″) 6 pockets at 1.5m/s, 8 pockets at 2.0m/s and 10 pockets at 2.9m/s
• 500mm (20″) 6 pockets at 1.7m/s, 8 pockets at 2.3m/s and 10 pockets at 3.0m/s
• 600mm (24″) 6 pockets at 2.0m/s, 8 pockets at 2.7m/s and 10 pockets at 3.4m/s

The above assumes a filter face of 592x592mm.

Classification acc. to EN 779:2002

Contact our team for more information.