HEPA filters (High Efficiency Particulate Arresting) used by BOFA are of the mini pleat design. They are generally manufactured by specialist filter companies to ensure that the latest manufacturing and test methods are adopted. Each filter incorporates a series of webbing between the pleats. This feature not only guarantees even spacing for full filter coverage between each pleat, but also alleviates the possibility of airflow vibration or collapse.
The BOFA ADVANTAGE micro filters are positioned within the system in such a way that all the particulates are not only captured but held within the media.
This is not the case with conventional reverse airflow systems were particulate can fall away and rest on the outside of the pre filter creating a health risk on filter replacement.
Mini pleats can be produced with depths of up to 200mm within each pleat, depending on the application.
BOFA HEPA filters are tested to filter 99.997% @ 0.3 microns.