Airborne disinfection nebulization for viruses

Effective on	Contact Time
BACTERIA ·      Pseudomonas aeruginosa ·      Staphylococcus aureus ·      Escherichia coli ·      Enterococcus hirae	30 minutes
·      Mycobacterium terrae ·      Mycobacterium avium	60 minutes
·      Klebsiella pneumoniae (BLSE) ·      Staphylococcus aureus (MRSA)	30 minutes
YEASTS ·      Candida albicans	15 minutes
FUNGI ·      Aspergillus niger, Aspergillus brasiliensis	120 minutes
VIRUSES ·      Poliovirus, Adenovirus, Norovirus, Covid sars 1, Covid sars 2	60 minutes
SPORES ·      Bacillus subtilis, Bacillus cereus	120 minutes
·      Clostridium difficile, Clostridium sporogenes COVID	60 minutes

b) DISINFECTION PROCEDURES FOR AREAS AND EQUIPMENT: 

The disinfection procedure via the use of the automatic nebulizer allows for the airborne disinfection of areas in accordance with the current European Standard ΝFΤ 72-281. The disinfection data, such as consumption, volume of the space, operating time, etc. are recorded in the nebulizer unit and transferred via USB to a PC, where they are stored electronically, providing full traceability of the disinfection procedure.

The device used for the area’s disinfection is an electronic, portable, autonomous nebulizer designed for the airborne disinfection of areas.  The device has been developed and designed so as to meet the strictest health and safety standards.  It is ergonomic, reliable and easy to maintain.  It is subject to a strict regulatory framework and has been extensively tested for compliance with the following European Directives (Norms):

• Directive 2006/95/EC:  Low voltage electrical equipment
• Directive 2004/108/EC:  Electromagnetic compatibility (EMC)

The combined use as a single disinfection procedure has been certified for its germicidal effectiveness.  The CE0120 marking on the device certifies its compliance with all relevant legislation.

DESCRIPTION OF THE DISINFECTION PROCEDURE

Area preparation

The customer ensures that the area to be disinfected is properly cleaned and, ideally, has been pre-disinfected before the nebulizing procedure (equipment surfaces, floors, walls).

During the preparation of the area, the operator checks the layout and size of the area, the cleanliness of the area, the compatibility of materials, any potential leaks, and prepares the area in accordance with the nebulizing disinfection protocol.

The airborne disinfection procedure is carried out WITHOUT AND AWAY FROM ANY HUMAN PRESENCE and consists of three stages: the nebulization (product quantity), the contact time (minimum time for full germicide effect) and the recovery (aeration of the area). 

1^st The nebulization stage consists of the following phases:

- The delayed start phase (determined on a case-by-case basis)

This phase allows users to leave the area before the spraying phase commences.

The technician leaves the room, shutting any windows and doors. He records the time and leaves the room.

- The preparation phase (2 minutes 30 sec.)

During this phase, the device operates without heating the product. In this phase, the lines are filled with disinfectant prior to first use and “fresh” product is supplied during the spraying phase.

- The preheating phase (8 minutes max)

In this phase, the product is preheated before spraying. This ensures that the product has the proper temperature throughout the spraying phase. 

- The spraying phase (depending on the volume of the room)

During this phase, the product is sprayed in the room.  The product’s on-line heating maintains a steady temperature of 55°C throughout the spraying phase. 

- The nozzle drying phase (1 ½ minutes)

The nozzle is dried after spraying.  Only pressurized air is supplied to the nozzle during this time. This empties the nozzle of disinfectant residues, preventing spills or the accumulation of deposits.

2^nd The contact time stage (minimum time for full germicide effect):

For the procedure to be effective, the contact time must be adhered to. The contact time allows the product to act against the various strains before the recovery of the room. The device does not spray during this time.  The area remains sealed and entry into the room is not permitted.  For full disinfection of the room in accordance with French Standards NFT 72-281 (Bactericide, fungicide, virucide, sporicide), at an application dosage of 7ml/m³, at 55°C, the contact time is 120 minutes.

3^rd The recovery stage (aeration of the space):

The operator, after adhering to the contact time according to the required activity spectrum, enters the room with the appropriate Personal Protective Equipment.  In order to know when to enter the room, he must take into account and calculate the times of all of the above operational phases, from the moment he left the room.  When inside the room, he will aerate the space, according to the means available. The room’s recovery time is complete when the concentration of substances in the air is lower than the exposure limits set out by the competent Ministry of Labor or Health.   An average time of half an hour is recommended for recovery.   Lastly, the operator opens the device’s removable cover, checks whether the product’s level in the container has fallen, as a confirmation that the device has operated, and that there is no trace of disinfectant on the floor. He also checks that the cycle has been successfully completed on the device’s screen.  If not, he repeats the procedure from the beginning.

After the end of the disinfection procedure, the operator turns on the room’s air conditioning or ventilation system and allows the public to enter the room.

B) DISINFECTANT FOR NEBULIZER:

The disinfectant allows for the area’s airborne disinfection without corroding surfaces and is compatible with most common materials.  The product is free of aldehyde and heavy metals and has a broad activity spectrum. It is ready for use without leaving residue on the surfaces. It is indicated for use in critical hospital areas, such as ICUs, operating rooms, AKUs, as well as in mobile treatment units, ambulances, etc. The disinfectant is suitable for use with the nebulizer and is used without any human presence.

The combination of the disinfectant and the device provides an effective process, in accordance with French Standard NFT 72-281 (Methods of airborne disinfection of surfaces -Determination of bactericidal, fungicidal, virucidal and tuberculocidal sporicidal activity) at an application dosage of 7ml/m³, at 55°C and with activity within 2 hours. The product’s active ingredients consist of a stabilized solution of hydrogen peroxide and peroxoacid (+/- 1200 ppm]. It is biodegradable, in accordance with European Legislation.

The disinfectant efficacy, in accordance with French Standards NFT 72-281, includes bacteria, fungi, viruses and spores at an application dosage of 7ml m³, at 55°C.

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