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The Compressor Inlet HEPA Filter/Silencer (DBF series) provides true HEPA filtration to protect respiratory and anesthesia equipment from bacterial and viral transmission through patient exhalation, mucus, and medication, and contributes to the reduction of maintenance costs for equipment decontamination and sterilization.

Assure DBF Assure DBF Series Assure DBF Series Assure DBF Series - HEPA
The compressor inlet HEPA filter/silencer.
HEPA filter.


  • True HEPA filtration with greater than 99.97% removal efficiency
  • Exceptional dirt holding capacity and high flows for long life
  • Customizable filters to fit customer requirements
  • Proven filtration technology with FDA 510(k) clearance
  • Wide variety of high-quality filter media and configurations 
  • Engineering, customization, testing, certification, and application support
  • ISO 9001, ISO 13485, 510(k) status, and FDA approved manufacturing facility

functional description

The DBF Series is a compressor inlet HEPA filter and silencer. The bacterial intake filters provide HEPA (High-Efficiency Particulate Arrestance) filtration to remove bacteria, atmospheric dust and debris found in intake air and typical oxygen concentrator environments. 

The DBF filters’ high efficiency helps to protect vulnerable patients while extending compressor lifetime by reducing contamination. The DBF series removes bacteria and viruses with greater than 99.97% filtration efficiency, while the silencer reduces noise levels. The DBF series bacterial intake filters provide true HEPA filtration for patient protection.

 Certified according to the ISO 13485 quality management system for medical devices, Pentair also manufactures in accordance with the most stringent Food and Drug Administration (FDA) requirements. We test each and every filter rigorously to guarantee the highest quality in the industry. The DBF compressor inlet HEPA filters, developed for oxygen concentrators and ventilators, are installed in the inlet air stream of respiratory devices. The DBF series allows healthcare providers to deliver on the promise of high filtration efficiency, low pressure drops, and high performance in protecting patients and respiratory equipment.

what it does

DBF provides true HEPA filtration

The DBF Compressor Inlet HEPA Filters are installed in the inlet air stream of a respiratory device, such as an oxygen concentrator. Once installed, these HEPA rated filters remove bacteria and viruses with greater than 99.999% efficiency. 

In addition, these HEPA filters remove the atmospheric dust and debris found in typical oxygen concentrator environments thereby helping to remove contamination that can cause premature compressor failure. The silencer design helps to reduce noise levels.


  • Oxygen concentrators
  • Ventilators
  • Anesthesia
  • Breathing circuits



Tech sheet
DBF32 tech sheet

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Tech sheet