An independent French laboratory, specialist in microbiology, has tested the performances of EOLIS Air manager on a coronavirus strain.

Experimental conditions

  • Air purifier tested : Serial EOLIS Air Manager 600S equipped with a Perform+ filter block, consisting of the following components:
    • A biocide pre-filter certified according to EN 14675: 2006 / EN 14476
    • A high-density activated carbon filter
    • A HEPA 13 filter certified according to EN 1822
  • An aerosol of droplets, contaminated with a known concentration of human coronavirus (strain HCoV-229E), was generated inside an airtight enclosure for five minutes.
  • The EOLIS Air Manager air purifier was then switched on for 10 minutes at the low speed 2 setting.
  • After operating for ten minutes, an indoor air sample was collected.
  • Following an incubation time of seven days, the concentration of surviving viruses in this sample was determined.
  • A control test of the purifier without a filter was then compared to a test with a filter. Each test was repeated three times.

Selection of viral strain

The strain of coronavirus used during the tests is not the one responsible for COVID-19 for obvious handling and safety reasons. However, NatéoSanté chose to test the effectiveness of EOLIS Air Manager on a very similar strain of human coronavirus that was discovered in the 1960s: strain 229E.

Its physical and biological characteristics (enveloped, positive-sense, single-stranded RNA structure, dimensions ~60-200 nm, etc.) are similar to those of all the human coronavirus strains, including the most pathogen ones such as MERS-CoV and SARS-CoV-2. 


Over an operating period of 10 minutes at speed 2, the EOLIS Air Manager 600S air purifier eliminates 99.6% of the human Coronavirus 229E present in the air of the 0,54 m3 airtight enclosure.

EOLIS Air Manager air purifiers are usually in operation 24 hours a day. Additionally, they offer the cumulated benefits of EN 1822 certified HEPA H13 filtration, UV-C lamps and the active oxygen function. The results allow us to confirm the effectiveness of EOLIS Air Manager in reducing the airborne coronavirus viral load.