The Bio steam cleaning: a more effective technique and economic! 1. The principles of bio-cleaning by steam: The water produced by steam cleaners is almost pure. This pure water, free of mineral salts, is a very powerful solvent that acts as a surfactant. This water dissolves more easily than conventional taps. 2. Why does steam disinfect? • The production of Enthalpie: As the steam liquefies, it gives off energy that produces latent heat of condensation, which is called enthalpy. This change in condition causes the irreversible denaturation of bacterial proteins by binding hydrolysis. In order for a steam cleaner to properly disinfect a surface, it must produce water as little as possible, so that as much water in the gaseous state as possible condenses at the outlet nozzle. 3. The biocidal activity spectrum of steam • The heat • Bactericidal (including BMR) • Mycobactéricide • Lévuricide (Candida albicans, Aspergillus niger) • Virucide (Orthopoxvirus, Adenovirus, Coronavirus) • Gale • Sporicide (clostridium difficile) with addition of H2O2 (hydrogen peroxide) 4. Comparison between the steam method and conventional detergents The advantages for the steam cleaning process are many: • Non-allergenic • Non polluant • No chemical (cleaning incubators: no risk for premature babies) • Rinse-free for food contact • Suppression of bacterial resistance usually observed with chemical disinfection • Removes dirt without deposition of residues and biofi formation • Disinfection thanks to high temperature • Water econome (3l of water compared to 200l for incubator cleaning) • French hospitals have increased their purchases of these devices in recent years, with an even greater increase since the Covid pandemic • An Afnor NFT72-110 published in March 2019 is currently the only standard that governs disinfection by means of contact or non-contact vapour disinfection processes • Positive economic impact. For example, an economic balance of the costs of maintaining a 500 m2 service according to both methods is as follows: – Traditional method: 5292 e TTC/year – Steam method: 2372 TTC/year. 5. Studies on the biocidal power of the steam process For a little over ten years, numerous studies have been carried out by laboratories or hospital hygiene departments to prove the biocidal power of the steam process. This is the case for example in the laboratories of the University Hospital of Strasbourg, Grenoble, the André Mignot Hospital in Versailles or the Saint Antoine Hospital in Paris. For the Société Française d’Hygiène Hospitalière, the steam appliance is an efficient and ecological method, saving water and products, and advises this method for the maintenance of bottom and areas difficult to access.

Summary

Problems of the current situation

The use of chemicals present in cans or plastic bags creates several challenges: 

• Development of micro-organism resistance to products used

• Clogging of surfaces, constitution of a chemical film favouring the formation of the biofilm and requiring, in fact, a greater detergence 

• Irritating or even allergenic phenomena in users • Obligation to wear Personal Protective Equipment (PPE)

• Air, waste water and environmental pollution • Hazards when reusing empty containers • Difficulties in obtaining local supplies of biocidal products meeting the standards guaranteeing their effectiveness 

• Supply by La Chaîne de l’Espoir difficile (sometimes ban on air transport, while shipping is long and expensive) • Risk of stock shortage, of supply, and therefore of resumption of obsolete and dangerous practices (use of bleach or glutarhaldehyde, both irritating to humans and very toxic to aquatic organisms) • Use of highly coveted consumables (such as mops, mops) resulting in rapidly declining inventories • Availability of important water (a sensitive subject in many countries where we intervene).

Challenge

The Bio steam cleaning: a more effective technique and economic! 1. The principles of bio-cleaning by steam: The water produced by steam cleaners is almost pure. This pure water, free of mineral salts, is a very powerful solvent that acts as a surfactant. This water dissolves more easily than conventional taps. 2. Why does steam disinfect? • The production of Enthalpie: As the steam liquefies, it gives off energy that produces latent heat of condensation, which is called enthalpy. This change in condition causes the irreversible denaturation of bacterial proteins by binding hydrolysis. In order for a steam cleaner to properly disinfect a surface, it must produce water as little as possible, so that as much water in the gaseous state as possible condenses at the outlet nozzle. 3. The biocidal activity spectrum of steam • The heat • Bactericidal (including BMR) • Mycobactéricide • Lévuricide (Candida albicans, Aspergillus niger) • Virucide (Orthopoxvirus, Adenovirus, Coronavirus) • Gale • Sporicide (clostridium difficile) with addition of H2O2 (hydrogen peroxide) 4. Comparison between the steam method and conventional detergents The advantages for the steam cleaning process are many: • Non-allergenic • Non polluant • No chemical (cleaning incubators: no risk for premature babies) • Rinse-free for food contact • Suppression of bacterial resistance usually observed with chemical disinfection • Removes dirt without deposition of residues and biofi formation • Disinfection thanks to high temperature • Water econome (3l of water compared to 200l for incubator cleaning) • French hospitals have increased their purchases of these devices in recent years, with an even greater increase since the Covid pandemic • An Afnor NFT72-110 published in March 2019 is currently the only standard that governs disinfection by means of contact or non-contact vapour disinfection processes • Positive economic impact. For example, an economic balance of the costs of maintaining a 500 m2 service according to both methods is as follows: – Traditional method: 5292 e TTC/year – Steam method: 2372 TTC/year. 5. Studies on the biocidal power of the steam process For a little over ten years, numerous studies have been carried out by laboratories or hospital hygiene departments to prove the biocidal power of the steam process. This is the case for example in the laboratories of the University Hospital of Strasbourg, Grenoble, the André Mignot Hospital in Versailles or the Saint Antoine Hospital in Paris. For the Société Française d’Hygiène Hospitalière, the steam appliance is an efficient and ecological method, saving water and products, and advises this method for the maintenance of bottom and areas difficult to access.

project4

Improved prevention of nosocomial infections in our fields of intervention

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Goal Amount: $ 10,000

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