The current health situation, consequent to the Covid-19 pandemic in the world, has brought air purifiers to the forefront. NatéoSanté, specialising in indoor air quality since 2009, has extensive experience of and insight into these devices’ evolution. Reinforcing the fight against the coronavirus, especially in hospitals, schools or companies, our EOLIS Air Manager models are at the forefront of innovation and technology. Their function: to filter and purify the air. Here is a general presentation of these devices and focus on the particularities of the brand.

Update 06/09/2021 – Prior version 26/09/2020

What is the general operating principle of an air purifier?

An indoor air purifier ensures the filtration of air within an enclosed/closed place, which is processed then released as purified air. It operates as a complement to natural ventilation where it is possible to open windows.

It is vital to distinguish a professional model from a consumer device: they do not both guarantee identical air treatment or comparable overall performance.

A professional air purifier, equipped with a HEPA 13 or 14 filter, will operate effectively on pollens, fine particles PM2.5 and PM10, VOCs (Volatile Organic Compounds), viruses and bacteria.

Finally, the device’s benign operation is key: that is to say the air purifier itself does not generate any secondary pollutants.

Discover our range of NatéoSanté professional air purifiers - EOLIS Air Manager and Hygeolis
NatéoSanté ranges: EOLIS Air Manager and Hygeolis air purifiers

In France, what is the official position on air purifiers in the context of Covid-19?

This official position on air purifiers has evolved since the spring of 2020. Previously, a negative opinion from the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) was the accepted reference viewpoint. In November 2020, a publication of the INRS (National Institute for Research and Safety) and then in May 2021, a second contribution from the HCSP (High Council for Public Health) set the standard: only equipment with a high efficiency filter against airborne particles were considered effective. Remember that in the case of Covid-19, they play a role in the fight against possible aerosol transmission, in addition to barrier gestures, wearing masks … This is particularly important in enclosed places lacking ventilation. They can be combined with a CO2 sensor which acts as a containment measure and will warn an area’s occupants when the 0.08% threshold limit is exceeded (see the HCSP recommendations on this topic).

What are the objectives of an air purifier?

To limit the diffusion of harmful residues, allergens or even viral elements; prevent asthma or allergy problems linked to poor indoor air quality to people at risk (children, elderly or sensitive people).

An air purifier, not to be confused with an air ioniser or air humidifier, can be used as a preventative and/or therapeutic measure: at home, in enclosed offices, open spaces or coworking sites, shops, hairdressing salons, hotels or restaurants, medical and paramedical offices… By extension, as Covid-19 is obliging us, it is assuming an expanding rôle in schools, hospitals, medical and paramedical sectors, services…

It concerns people and\or companies wanting, through preventative measures, to protect their health and\or that of their group or employees. In the latter case, for example, in the case of an activity’s resumption or continuation. The indoor air purifier is, in this sense, in alignment with current air quality health and social issues. This is both with regard to fine particle pollution PM2.5 and the risks related to viral propagation by air or aerosol(s).

How does an air purifiers work?

A purifier filters indoor air and purifies it thereby removing various sources of pollution and pollutants.

This air purification goes through several stages. First of all, the purifier sucks in ambient air present in the room in order to capture particles. The air then passes through various filters that further permit the retention of different types of pollutants present in the air.

Dependent on your air purifier’s performance, it will be able to treat different air volumes related to room size (bedroom, living room, dining room), offices, shared spaces, open spaces…

For optimal performance, it is essential to install one air purifier per room: we are always speaking in terms of partitioned areas.

What are the targets of an air purifier’s pre-filter?

The pre-filter captures macro-particles such as large dust particles, animal hair, etc. Placed directly between the device’s hood and the other filters, it is the initial filtration system: operating as soon as air enters the unit. This filter, which is generally washable, extends the life of the other filters by filtering macro-particles upstream.

Is the medical grade HEPA filter effective against viruses?

The HEPA filter of a professional air purifier like EOLIS Air Manager can retain more than 99% of particles larger than 0.3 µm. This filter is of medical quality. It is also called an absolute filter.

It is composed of a layer of very fine fibre. It permits, thanks to its tight weave, the retention of dust mites, pollens, moulds, fungi, pesticides, bacteria, viruses, fine dust, animal hair, or even diesel particles.

Is an air purifier effective against coronavirus and Covid-19?

The EOLIS Air Manager air purifier is 99.6% effective against coronavirus. This result was obtained and certified through tests conducted by an independent microbiology laboratory. They were published in November 2020 by NatéoSanté. They were carried out on a strain of human coronavirus (HCoV-229E) close to the SARS-CoV-2 strain responsible for the Covid-19 pandemic.

What is the role of the activated carbon filter?

The activated carbon filter is primarily used for the elimination of bad odours present in a room. It is a filter containing activated carbon beads which filter and eliminate toxic gases such as benzene, hydrogen sulphide, formaldehyde, ammonia vapours, bleach, bad odours… Activated carbon filters, used by NatéoSanté for its air purifiers, also make it possible to eliminate excessive ozone present in your room’s environment.

How does oxidation/UV-C air filtration work?

Polluting particles are absorbed thanks to an oxidation and reduction reaction between the catalyst and UV-C radiation. This process converts the VOCs into H2O and CO2. This is a switchable On\Off function on our models.

What is the purpose of the Active Oxygen Generator?

The active oxygen function treats indoor air thoroughly. This function, to be activated when you are not present in the room or at your workplace, eliminates deep-seated odours (sheets, textiles, carpets) and also treats the space against mites and mould. This feature is available as an option on the EOLIS Air Manager professional indoor air purifier. It is also On\Off switchable on our various models.

Professional air purifiers for businesses
Adapt the air purifier to its intended use to the room being treated… NatéoSanté can advise you

How to choose your indoor air purifier? 

Each air purifier has its own performance and technical characteristics. Before buying an air purifier, you should compare the filtration levels of the various devices available to you and consider these criteria when purchasing your air purifier. Indeed, the effectiveness of your product against air pollution depends on the initial device selection and precise use that you will make of it. Asthma, allergies, fine particles, odours … For some use it preventatively, for others it simply provides additional comfort by promising a healthy and purified air. These are the criteria that you must take into account when buying your air purifier:

Adapting the air purifier to the room to be treated

Choisir son purificateur d'air selon sa surface à purifier

The treated surface: Each air purifier treats a surface ranging from 25 m² to 120 m². Dependent on the size of area to be treated it will be necessary to adjust the device size. For optimal air filtration, air movement must be limited in scope, i.e. each partitioned space must have its own device. An undersized unit or one used in several rooms will be much less effective.

Choose the right level of filtration

Quels filtres pour purificateur d'air professionnel

Filters: There are different air purifier filtration systems. At NatéoSanté, this extends to four levels of filtration. Each air purifier filter and each option have a precise function capable of eliminating a specific type of pollutant\pollution. Prioritise and order your problem pollutants and choose the most suitable device adapted to your need by verifying the efficacy of each filtration level. (See above)

View further details about the EOLIS Air Manager filter unit

Consider the noise air purifier’s noise level

Choisir un purificateur d'air silencieux

Noise level:auditory comfort is an important concern because your air purifier is always operating on a daily basis. To function properly, it must be both on continuously and not disturb you at any time of the day. NatéoSanté air purifiers also have an extremely quiet night mode that allows you to work next to the device without being disturbed.

Individuals, professionals… homes and offices: who is the air purifier for?

offices tertiary workplace wellness work-life quality wlq productivity

The air purifier is intended for anyone (CEO, Head of Human Resources…) wishing to treat the air quality at their home or place of work. The air purifier can be used for both curative and preventive purposes. It is extremely useful for people suffering from respiratory diseases such as asthma or allergies, but also for people who want to eliminate pollution or bad smells.

An air purifier is intended for any person, (company manager, HRD…) wanting to treat air quality at home or at their professional premises. The air purifier can be used for therapeutic or preventative purposes. It is extremely helpful for people suffering from respiratory diseases such as asthma or allergies but also for these who want to eliminate pollution or bad odours.

Learn more about air purifiers


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