Filter technology
As a leader in the manufacture of filtration systems, Donaldson BOFA continually invests in the development of innovative technologies. BOFA systems are protected by patent, design copyright, registered designs and trademark laws. We work hard to protect our intellectual property and our integrity so you can enjoy the peace of mind that comes from investing in BOFA's innovative and original technology.
Our products are protected by the following patent numbers.
- Filter Assembly (DeepPleat DUO pre filter) GB2 499 495
- iQ Operating System GB2 499 812
- iQ2 Affinity Operating System - Patent Application No:1609111.8. Fieldbus Connectivity Intelligent Customer I/O Interface - Patent Application No:1609116.7.
Pre-filter
DeepPleat pre-filter
The DeepPleat pre-filter is a pleated filter that increases the filter area while maintaining a compact size. This makes Donaldson BOFA filters long-lasting and space-saving.
DeepPleat DUO pre-filter
The DeepPleat DUO pre-filter is designed to maximise its service life. It contains a large-capacity settling chamber that acts as a pre-separator. This extends the life of the pre-filter and prevents premature blockage of the HEPA filter.
Main filter
HEPA
Our HEPA filters are rated at 99.995% efficiency for particles as small as 0.3 microns. An additional filter is used to remove fine particles.
Advanced carbon filter
Our advanced carbon filters are designed to effectively filter vapours, with the types of carbon carefully matched to specific industrial applications. Contaminated air must remain in contact with the carbon layer for a sufficient period of time ('retention time') to ensure effective removal of contaminants and odours. Our solutions take into account the balance between airflow and the type, depth and mass of carbon used to suit the specific application and ensure optimal retention time.
Preliminary filters
We also offer a wide range of pre-filters.
