Dobrich Hospital

Dobrich Hospital front

Dobrich Hospital - Orthopaedic, Surgical & ER Departments

Dobrich Hospital is an 8 storey, state majority funded public medical facility located in Dobrich city centre in Bulgaria.

Key Points:
  • Continuous 24/7 protection
  • Significantly improved ventilation
  • Old problem odours removed
  • Airborne & surface purification
  • Removed mould, damp & condensation problems
  • Significant reduction in allergy symptoms

Hospital Fights COVID19 with Airius PureAir PHI Series


Maintaining a clean, safe environment for patients and staff during the COVID19 pandemic was a top priority for Dobrich hospital. Patient to patient transmission needed to be controlled, whilst medical staff were in desperate need of protection when performing emergency surgeries on COVID positive patients. Due to budget restraints and no HVAC system within the building sourcing an easily adaptable solution was critical.

Airius fan


After conducting their own in-house tests, the Hospital was so impressed with the results of the PureAir PHI system they immediately installed units within their Orthopaedic department. As units can be installed within a matter of hours this caused minimal disruption to the normal operation of the building. The system was later extended to include their Surgical and ER departments, as well as other high traffic areas.


Directors, staff and patients have been extremely impressed with the results of the PureAir PHI system:

  • • Staff COVID tested 26 times with 0 positives
  • • Provide pathogen neutralisation
  • • Easily adaptable and extendible solution
  • • Significantly improved air circulation
  • • Air & surface purification
  • • Protects against new contaminants
  • • No filters required
  • • Occupant comfort vastly improved
Airius PureAir Series Purifying Hospital Spaces


PureAir PHI Technology Explained

How does the PureAir Series PHI Cell kill bacteria and viruses in the air and on surfaces?

The PureAir Photohydroionisation (PHI) Cell manufactured by RGF Environmental, one of the worlds leading specialists in air, water and food purification, is a kind of UV light that emits advanced oxidation plasma. Included as part of a fan system, the PHI cell distributes hydro-peroxides, superoxide ions and hydroxide ions throughout the space, neutralising up to 99%+ of micro-organisms in the air and on surfaces.

PHI cells produce a group of oxidants known as hydroperoxides. Far from new to our world, hydroperoxides have been around for 3.5 billion years – and today they are commonly used in air purification environments, where they offer an anti-microbial treatment without leaving chemical residues.

Benefits of PureAir Technology

Choosing an Airius PureAir Series destratification fan with its integrated PHI Cell is a simple way to reduce bacteria, viruses and odours in your environment.

  • •  Continuous purification of air and surfaces
  • •  Easy to install in any environment
  • •  Kills up to 99%+ of bacteria, germs and viruses
  • •  Reduces gases, vapours and VOCs by up to 99%
  • •  Reduces odours by up to 72%

Airius Active Air Purification Systems

Tested and Approved by Leading Agencies

Accreditation logos

Multiple studies have been conducted on RGF PHI Cell technology and they are widely approved for use to control airborne and surface-based bacteria, viruses, smoke and odours.

  • •  Approved by the USDA and FSIS for use in food processing plants
  • •  US military approved for use in field hospitals
  • •  Chinese government approved for use in controlling the SARS virus

Testing carried out by:

  • •  Kansas State University
  • •  Midwest Research Institute
  • •  NELAP Accredited Independent Labs – The NELAC Institute
  • •  California Microbiology Center
  • •  IBR Laboratories
  • •  University of Florida
  • •  United States Air Force
  • •  R&D Labs
  • •  University of Cincinnati
  • •  Kane Regional Hospital
  • •  FEMA
  • •  NEI-Chinese Government

Contact Us

Airius fans are commonly used to balance temperatures in a wide variety of environments – from care homes to warehouses.

Adding an Airius PureAir Series destratification fan is a simple way to continually clean the air, creating a safer and healthier environment for your residents, colleagues and visitors..

Contact Us to learn more >>