Detailed explanation of Nanojet technology principles

Droplet Size Analysis: 10-100 nanometers, Precise Pathogen Capture. The core technology of the NanoJet spray system lies in its ability to generate ultrafine droplets, with over 90% of the droplets ranging in size from 10 to 100 nanometers (0.1 micrometers). This sub-micrometer size is crucial for effectively capturing and neutralizing airborne viruses, bacteria, pollen, and other ultrafine particles. For example, the influenza virus is approximately 20 nanometers in size, and the Covid-19 virus is approximately 130 nanometers. NanoJet's droplet size enables it to effectively combat these tiny pathogens. Furthermore, the NanoJet system can also effectively handle fine particulate matter such as PM2.5 and PM10.
Physical mechanism of action: effectively neutralizes viruses, bacteria, and allergens in the air.
NanoJet's submicron-sized droplet size is a key technological driver of its superior efficacy against airborne pathogens and particulate matter. This physical mechanism, independent of chemical reactions, delivers stable and robust performance in a wide variety of indoor environments, making the technology highly effective.
Droplet Size Analysis: 10-100 nanometers, Precise Pathogen Capture. The core technology of the NanoJet spray system lies in its ability to generate ultrafine droplets, with over 90% of the droplets ranging in size from 10 to 100 nanometers (0.1 micrometers). This sub-micrometer size is crucial for effectively capturing and neutralizing airborne viruses, bacteria, pollen, and other ultrafine particles. For example, the influenza virus is approximately 20 nanometers in size, and the Covid-19 virus is approximately 130 nanometers. NanoJet's droplet size enables it to effectively combat these tiny pathogens. Furthermore, the NanoJet system can also effectively handle fine particulate matter such as PM2.5 and PM10.
Physical mechanism of action: effectively neutralizes viruses, bacteria, and allergens in the air.
NanoJet's submicron-sized droplet size is a key technological driver of its superior efficacy against airborne pathogens and particulate matter. This physical mechanism, independent of chemical reactions, delivers stable and robust performance in a wide variety of indoor environments, making the technology highly adaptable and universally applicable. Its tiny size allows the mist to remain suspended in the air for longer periods and penetrate the airspace more thoroughly. Crucially, it enables efficient physical interactions (e.g., collision, encapsulation) with airborne particles and pathogens, rather than relying solely on chemical contact. Unlike traditional pore-capture-based filtration systems or chemical sprays that rely on direct contact and often leave residues, nano-mist can penetrate complex airflows, such as those in central air conditioning systems, and effectively reach pathogens even in crowded or obstructed indoor spaces. This inherent physical advantage ensures continuous and comprehensive disinfection in various environments, positioning the system as a more versatile and effective solution than competitors with larger droplet sizes or those relying on chemical mechanisms. This physical mechanism is the core competitive advantage of the system, clearly differentiating it from many disinfection products on the market that rely on chemical components. The physical mechanism of action means that it will not produce drug resistance and its performance is stable in different environments and is not limited by chemical compatibility, which also strengthens the selling point of "pure water".

Independent laboratory and NHS test results: virus and pollen removal rates
The superior disinfection capabilities of the NanoJet system, distributed by Hongda Asia Development, have been scientifically validated. Independent tests conducted by a third-party microbiology laboratory in the United States and the National Health Service (NHS) in the United Kingdom have proven its high efficiency. Specific test results show:
● Using only pure water for spraying: After 5 minutes of pure water spraying, the removal rate of MS2 virus in the air reached 94% within 20 minutes and 98% within 60 minutes. This data directly proves the effectiveness of the "chemical-free" approach.
● Spraying with a common disinfectant diluted 10 times with water: Under the same conditions, the virus removal rate reaches 99.93% within 20 minutes and 99.98% within 60 minutes.
● Pollen removal rate: The system only requires a tiny amount of water spray for two minutes to effectively remove 99.9% of pollen.
These data not only demonstrate the effectiveness of the NanoJet system, but more importantly, they come from internationally recognized authoritative institutions, whose endorsement is far more valuable than that of internal company data.
Independent laboratory and NHS test results: virus and pollen removal rates
The superior disinfection capabilities of the NanoJet system, distributed by Hongda Asia Development, have been scientifically validated. Independent tests conducted by a third-party microbiology laboratory in the United States and the National Health Service (NHS) in the United Kingdom have proven its high efficiency. Specific test results show:
● Using only pure water for spraying: After 5 minutes of pure water spraying, the removal rate of MS2 virus in the air reached 94% within 20 minutes and 98% within 60 minutes. This data directly proves the effectiveness of the "chemical-free" approach.
● Spraying with a common disinfectant diluted 10 times with water: Under the same conditions, the virus removal rate reaches 99.93% within 20 minutes and 99.98% within 60 minutes.
● Pollen removal rate: The system only requires a tiny amount of water spray for two minutes to effectively remove 99.9% of pollen.
These data not only demonstrate the effectiveness of the NanoJet system, but more importantly, they come from internationally recognized authoritative institutions, making their endorsement far more convincing than internal company testing.
Broad-spectrum efficacy against multiple pollutants: comprehensively improves indoor air quality
The NanoJet system, distributed by Hongda Asia Development, has proven effective against viruses, bacteria, and pollen, and can also handle ultrafine particulate matter (PM0.1, PM2.5, PM5, PM10). This demonstrates its effectiveness against a wider range of pollutants, not just infectious pathogens. This positions Hongda Asia Development's system as a more comprehensive indoor air quality solution, capable of improving overall air purity and comfort—a significant differentiating advantage in a market requiring comprehensive environmental control.

A. Medical institutions: Creating a sterile and safe healing environment
Urgent Needs and Challenges: Infection Control and Regulatory Compliance
Healthcare facilities are inherently high-risk environments for disease transmission due to the constant flow of patients and the introduction of diverse pathogens. Poor indoor air quality poses a significant threat to patient recovery and the safety of healthcare workers, potentially leading to respiratory infections, headaches, and fatigue.
Taiwan's regulatory environment imposes stringent requirements on indoor air quality and infection control in medical institutions. For example, the Infectious Disease Prevention and Control Act requires medical institutions to implement strict infection control measures, including patient flow management and rapid reporting mechanisms. The Environmental Protection Administration's Indoor Air Quality Standards designate medical institutions as public places, setting specific limits on major pollutants such as carbon dioxide, carbon monoxide, formaldehyde, total volatile organic compounds, bacteria (maximum 1500 CFU/m³), fungi (maximum 1000 CFU/m³), PM10, PM2.5, and ozone. Furthermore, the Infection Control Guidelines for Long-Term Care Institutions specifically require regular maintenance...
A. Medical institutions: Creating a sterile and safe healing environment
Urgent Needs and Challenges: Infection Control and Regulatory Compliance
Healthcare facilities are inherently high-risk environments for disease transmission due to the constant flow of patients and the introduction of diverse pathogens. Poor indoor air quality poses a significant threat to patient recovery and the safety of healthcare workers, potentially leading to respiratory infections, headaches, and fatigue.
Taiwan's regulatory environment imposes stringent requirements on indoor air quality and infection control in medical institutions. For example, the Infectious Disease Prevention and Control Act requires medical institutions to implement strict infection control measures, including patient flow management and rapid reporting mechanisms. The Environmental Protection Administration's Indoor Air Quality Standards designate medical institutions as public places, setting specific limits on major pollutants such as carbon dioxide, carbon monoxide, formaldehyde, total volatile organic compounds, bacteria (maximum 1500 CFU/m³), fungi (maximum 1000 CFU/m³), PM10, PM2.5, and ozone. Furthermore, the Infection Control Guidelines for Long-Term Care Institutions specifically require regular maintenance of air conditioning systems and ensuring filter cleanliness to prevent outbreaks.
However, existing disinfection methods generally have limitations. Traditional chemical disinfection methods, such as those using bleach, glutaraldehyde, and sodium hypochlorite, often raise concerns about chemical residues, potential health effects on sensitive individuals, material degradation, and environmental disposal challenges, and typically require evacuation of the space. While ultraviolet (UVGI) irradiation is effective in reducing microbial load, direct exposure to UV-C light is harmful to humans. High-efficiency particulate air (HEPA) filters are crucial for capturing fine particles and airborne pathogens, but they are a passive filtration method. Ozone disinfection is powerful, but high concentrations of ozone itself are a regulated indoor air pollutant harmful to human health, limiting its use in occupied spaces.
Hongda Asia Development Agency's chemical-free, submicron-level spray technology is uniquely positioned to fill this market gap. Using only pure water and producing a fine mist, it fundamentally avoids the need for harsh chemicals and direct UV exposure. This directly addresses and mitigates the main drawbacks of existing methods: eliminating chemical exposure for patients and staff and eliminating the hazards of UV radiation. This positions Hongda Asia Development Agency's system solution as a safer, more environmentally friendly, and, crucially, "continuously operational" disinfection system in occupied spaces. This capability represents a significant unmet need in the healthcare field, as the continuous reduction of pathogens without interfering with patient care or staff activities is highly desirable.
High-potential application zones: Intensive care units, operating rooms, emergency rooms, and long-term care facilities.
The presence of highly vulnerable populations in healthcare settings (e.g., critically ill patients, the elderly, and those with weakened immune systems) significantly underscores the need for systematic, chemical-free, and continuous disinfection solutions from companies like Hongda Asia Development Agency, as these groups are extremely sensitive to the adverse effects of airborne pathogens and chemical exposure.<sup>1</sup> High-potential application segments include:
● Intensive Care Unit (ICU), Emergency Room (ER), and Isolation Wards: These areas treat the most vulnerable patients and have the highest risk of infection transmission. They have the most stringent requirements for air quality and continuous disinfection, making the ability of Hongda Asia Development Agency's systems to operate safely and continuously invaluable.
● Operating Room/Surgery Room: Maintaining ultra-clean air is crucial for preventing surgical site infections, a key consideration for patient safety and hospital reputation.
● Waiting areas and outpatient clinics: These are high-traffic areas where airborne transmission is common among patients and visitors. Effective air disinfection in these places can significantly reduce community transmission.
● Long-term care facilities and clinics: These facilities serve elderly and immunocompromised residents who are highly vulnerable to infection. Strict infection control and maintenance of indoor air quality are not only crucial for the well-being of residents but are also legally mandated. Hongda Asia Development's systematic, chemical-free approach offers unique and superior advantages in these sensitive environments compared to traditional chemical disinfection methods. It provides patients and residents with a safer, more comfortable, and less irritating environment, directly addressing critical needs for overall well-being beyond pathogen elimination.
Advantages of seamless integration with existing HVAC systems
INJT systems can be seamlessly integrated with existing central air conditioning systems in healthcare facilities, utilizing the existing air distribution network for broad-based disinfection. Standalone units can also be deployed in specific rooms or areas that may not be fully covered by the central system or require additional localized treatment for targeted disinfection. This "easy integration" feature significantly lowers the adoption barrier for hospitals, avoiding the enormous costs and disruptions associated with overhauling or replacing large, complex, and often expensive HVAC systems. The systems, distributed by Hongda Asia Development, can be retrofitted into existing air handling units or ductwork, providing a less invasive and more cost-effective upgrade path, making them more feasible and attractive to budget-constrained healthcare facilities.
B. Commercial Buildings and Public Spaces: Enhancing Health, Productivity, and Corporate Image
The impact of indoor air quality on residents' health and productivity
On average, people spend up to 90% of their time indoors, making indoor air quality a key determinant of health. Poor indoor air quality can lead to symptoms such as headaches, fatigue, and various respiratory problems. Globally, poor home air quality is linked to approximately 3 million deaths annually from respiratory and cardiovascular diseases. More importantly, good indoor air quality has been shown to improve occupant productivity and reduce absenteeism, delivering tangible benefits to businesses. Therefore, maintaining excellent indoor air quality in business environments, in addition to direct health benefits, can significantly improve employee productivity, boost morale, and enhance overall business performance, positioning indoor air quality solutions as a strategic investment for forward-thinking employers.
High-potential application segments: large office complexes, shopping malls, and educational institutions.
Hongda Asia Development Agency's solutions have broad application potential in commercial buildings and public spaces:
● Large office complexes: These environments prioritize employee health, comfort, and productivity. Adopting the systems provided by Hongda Asia Development Agency helps in obtaining green building certifications and enhancing a positive corporate image.
● Public places: Shopping malls, conference centers and transportation hubs are ideal target customers due to their large flow of people and high potential for airborne diseases.
● Educational Institutions: Schools and universities, including dormitories and classrooms, are environments where close contact allows for the rapid spread of pathogens. Improving indoor air quality in these places is an important public health consideration and can reduce student and staff absenteeism.
Central air conditioning system integration: Achieving continuous purification and energy conservation throughout the building
Central air conditioning systems are crucial for maintaining optimal indoor air quality in large buildings, as they control ventilation, temperature, and humidity. However, their effectiveness depends on regular and thorough maintenance, including filter cleaning and cooling tower disinfection, to prevent the proliferation and distribution of microbial contaminants. If central air conditioning systems are damaged, they can actively circulate bioaerosols throughout the building, increasing the risk of infection.
Integrating the system of Hongda Asia Development Agency directly into the building's central air conditioning infrastructure provides a highly efficient solution for continuous, passive disinfection throughout the building. This approach addresses the main pathways of airborne contaminant transmission, offering a more effective, less disruptive, and potentially more scalable solution than relying on numerous localized air purification devices. Disinfecting the air within the HVAC system before it is distributed throughout the building provides the most effective and comprehensive method for air purification in large-scale environments. Hongda Asia Development Agency's NanoJet system, with its ultrafine mist, can be strategically injected into the return air ducts of the central air conditioning system or directly into air handling units (AHUs), ensuring that the disinfecting mist is evenly distributed throughout the building's conditioned spaces, providing continuous and active air treatment.
Furthermore, Taiwan's robust and evolving "smart building" trend provides a significant market impetus for Hongda Asia Development Agency's intelligent systems. This allows the NanoJet system to be strategically positioned not merely as a standalone disinfection solution, but as an integral part of a comprehensive, energy-efficient, and technologically advanced smart building ecosystem. Hongda Asia Development Agency's systems are characterized by "intelligent management" and "low operating costs," and this inherent intelligence and efficiency enable seamless integration into smart building management platforms. It contributes to the building's overall energy efficiency goals (e.g., by reducing the need for continuous outdoor air exchange to dilute pollutants) and enhances its smart/green certification status. This dual benefit is highly attractive to forward-thinking developers, building owners, and facilities managers seeking to optimize environmental performance and operating costs to enhance the market value and attractiveness of their buildings.
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