Solution Overview - Air Filter with Pathogen Inactivator

This set is THREE PRODUCTS IN ONE:

1 - A HEPA+ Air Filter

2 - A Pathogen Inactivator with ultraviolet radiation

3 - A Chamber to place your personal belongings for sanitization

Shieldguard introducing the ultimate air filter designed to safeguard your home and family. This advanced air filter utilizes state-of-the-art HEPA technology, effectively capturing microscopic particles and contaminants, from the air drawn through your floor vents. It creates an airtight, positive pressure environment within your home, ensuring that only clean, filtered air circulates while preventing the infiltration of harmful pollutants. 

Engineered for maximum efficiency and reliability, this air filter provides peace of mind and unparalleled protection against airborne threats.

1 - A HEPA+ AIR FILTER

Our mobile air filter utilizes HEPA+ technology. This innovative device ensures clean and purified air in your home, providing you and your family with a healthier living environment. Breathe easy knowing that harmful particles, are being eliminated. 

The heart of the air filter is our cartridge, specially assembled by Shieldguard, which has an activated carbon pre-filter film, three HEPA filters in series and at the end a second film of MERV17 filtering material. This set, assembled in a single form called a cartridge, is easy to install and/or replace, which can be done every 12 months, or in heavy use every 6 months, to maintain adequate air filtration levels within the standards of clean rooms or surgical operating rooms according to ISO 14644-1.

-  Normal Use  8 to 12 hours per day

-  Heavy Use  More than 12 hours a day

2 - PATHOGEN INACTIVATOR & 

3 - SANITIZING CHAMBER

In the upper part of the filter we have a chamber, where the AIR, after the mechanical filtration phase, passes at low speed and remains for the minimum time necessary to receive a dose of ultraviolet radiation and inactivate possible pathogens that had passed through the previous phase.

The upper part of the filter has a lid, where we have access to the disinfection chamber where the air circulates and where personal objects can be placed to inactivate pathogens. 

A minimum time of 2 minutes for exposing personal items to a sufficient dosage of UV-C (265nm) and inactivation of pathogens such as SARCOV2. 

HEPA is a type of pleated mechanical air filter. It is an acronym for "high efficiency particulate air [filter]".  This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm). The diameter specification of 0.3 microns corresponds to the worst case; the most penetrating particle size (MPPS). Particles that are larger or smaller are trapped with even higher efficiency. Using the worst-case particle size results in the worst-case efficiency rating (i.e. 99.97% or better for all particle sizes).

ULTRAVIOLET

UV-C radiation has a rich history in the field of disinfection. Dating back to the early 20th century, scientists discovered the germicidal properties of UV-C light and its ability to effectively destroy microorganisms.

In the 1930s, UV-C radiation gained recognition for its use in water treatment, particularly in the disinfection of drinking water. Its ability to inactivate harmful bacteria, viruses, and other pathogens made it a valuable tool in ensuring safe and clean water supplies.

Over the years, UV-C radiation technology has evolved and found applications in various industries. In healthcare settings, UV-C radiation has been utilized for disinfecting hospital surfaces, medical equipment, and even air ventilation systems. Its effectiveness in reducing the spread of healthcare-associated infections has made it an essential component of infection control protocols.

In recent times, the emergence of highly contagious pathogens, such as SARCOV-2, has further highlighted the importance of UV-C radiation in disinfection. Studies have shown that UV-C radiation can effectively inactivate viruses, including coronaviruses, providing an additional layer of protection against the transmission of infectious diseases.

With advancements in technology, UV-C radiation disinfection devices have become more accessible and user-friendly. Portable devices designed for personal use, like our product, utilize UV-C radiation to disinfect and inactivate pathogens on various surfaces, including mobile devices, jewelry, and more.

UV-C radiation long-standing history in disinfection, coupled with its proven efficacy, makes it a trusted and reliable method for maintaining cleanliness and promoting hygiene. As we continue to prioritize health and safety, UV-C radiation technology remains at the forefront of disinfection practices, ensuring a safer and healthier environment for all.

The peak in UV-C wavelength with maximum disinfection performance is typically around 265 nanometers (nm). UV-C radiation at this wavelength has been found to be highly effective in inactivating pathogens, including bacteria and viruses. It is important to note that UV-C radiation can be harmful to human skin and eyes, so it should be used with caution and following proper safety guidelines in this manual and Product Label.

Bacteria and viruses proliferate by cell division based on genetic information to cause infection and illness. DNA and RNA holds the genetic information necessary for this proliferation to occur. Irradiating with UV-C changes the helix structure of DNA and RNA of held by bacteria and viruses, which can inactivate these bacteria and viruses resulting in reducing their proliferation.

Shieldguard AIR FILTER with pathogen inactivation technology is the result of a collaborative effort with STANLEY ELECTRIC, the provider of the UV-C radiation emitter technology. 

STANLEY ELECTRIC has verified the effect of ultraviolet LEDs on the new coronavirus (SARS-CoV-2). From the results of evaluation tests performed jointly with Yamaguchi University 

Complete Information Source:

https://www.stanley.co.jp/e/product/uvc_product/effect/?__CAMCID=fCIvvwDPwk-528&__CAMI=3.2.1.1.DeQMjihdCDE.QuERDpjOe9j4mBaa-69&__CAMSID=QuERDpjOe9j4mBaa-69&__CAMVID=DeQMjihdCDE&_c_d=1&_ct=1713318564639&_ga=2.211907860.1059319896.1713317398-1844005522.1713109841

PERFORMANCE - TECHNOLOGY AND UV-C INTENSITY

The project was designed based on 3 requirements, FIRST the use of a project (UV-C LED) tested and approved by a renowned institution, SECOND Use of the same components, and minimum dosage, THIRD A Quality Management System (QMS) that guarantees the use of the same components, traceability and advertising to the buyer.

FIRST

Shieldguard uses STANLEY ELECTRIC UVC LED at 265nm, with power and exposure distance in the exposure chamber as approved and tested by our LED supplier STANLEY ELECTRIC at Yamagishi University in Japan.

Source:

https://www.sciencedirect.com/science/article/pii/S266646902100035X?via%3Dihub

SECOND

Inactivation rate of SARS-CoV-2 is 99.9% or more, when the UV Dose is 5.1mJ/cm2 

The exposure chamber, where the filtered air passes and where we have the acrylic support to place personal belongings, is 40cm (15.7”) long, 25cm (9.8”) wide and 10cm (3.9”) high internally.

The UV-C irradiation doses (DD) in mJ/ cm2 for a 210 mW UV-C source at distances of 3 cm, are as follows:

Maximum distance and time of an irradiated point from the irradiation source: 

3 cm  

0.2s:  1.49mJ/cm2  

0.5s:   3.71mJ/cm2  

1s:   7.43mJ/cm2  

2s:   14.85mJ/cm2  

120s:  891.27mJ/cm2  

Considering the internal dimensions of the chamber, we have an air volume of 10,000cm3, or 10L, or 0.01m3 and an air outlet/inlet with an area of ​​0.004m2. 

Let's calculate the time the air volume remains inside the chamber considering an air flow of 4ms and 2m/s respectively, which consists of the maximum speed of the fan motor and half.

For flow of 4 m/s: 0.625 seconds.

For flow of 2 m/s: 1.25 seconds.

NOTE: 

These are the direct results applying the data on the chamber area, flow velocity and its inlet-outlet area and the maximum distances from the UV-C irradiation sources. We will not illustrate the formulas step by step so as not to make it too long. The important thing is that the results are mathematically verifiable by anyone.

Conclusion: 

The system was designed to allow the volume of filtered air inside the chamber to remain exposed to UV-C radiation for a minimum amount of time at a distance, of no more than 3 cm and to allow a dosage greater than 5.1 mJ/cm2 at the maximum speed of the fan motor. The lower the speed, the greater the efficiency in terms of the time that the volume of air will remain inside the chamber exposed to the UV-C dosage.

For items to be placed inside the chamber, under the support, the suggested minimum time of 120 seconds is much longer than enough for the items to receive the necessary dosage to disrupt the virus's DNA/RNA.

THIRD

Shieldguard has an internal quality management system that seeks to provide a unique and non-transferable identity for each manufactured unit. Crucial components, such as ultraviolet radiation emitters, have a unique identification (serial number, batch number and date) printed on the purchase invoice. This information is linked to the customer's name, generating a certificate and allowing traceability down to the component level. With this practice, we guarantee that the product purchased used original components with model (ZEUBE265 Family) and brand (Stanley Electric) identical to those used in the evaluation tests developed by STANLEY ELECTRIC at Yamaguchi University in Japan. 

Additionally, after assembly, we measure and record on the customer's certificate the dosage (mJ/cm2) and PM average in the exposure chamber with appropriate instrumentation with Calibration. Certification. These measures seek to provide guarantees to the buyer that he is purchasing an original product, with tested, effective components, with final assembly evaluated, allowing traceability at the component level.

SPECIFICATIONS

Performance and Technical Specifications   

Model Number  HEPA UV-C air filter  

Filter cartridge life  12 months

UV-C emitter life  10,000 hours

Physical 

Dimension  L 17.3”x W 11.9”x H 19.5”

 L 43.94 x W 30.23 x H 49.53 cm  

Weight  1000 g

Environmental  

Operating Temperature  5°C/41F to 40°C/104F  

Humidity  20% – 90%

Noise (Bedroom door closed)

OFF   37.9dB

High   51.0dB

High   39.5dB (1 meter distance)

Electrical

Voltage   120V OPTION 12V on request.

Power Consumption   0.384 amp or 44W 

Air Flow

Hi     478.66m3/h or 281.73 ft3/min CFM

Mid  233.49m3/h or 137.43 ft3/min CFM

Miscellaneous

Emission EMI/EMC    RF 0.3mW/m2 / EF 3V/m /  EMF 1.2mG

Radiation  15CPM / 0.10uSv/h / 0.010mR/h

Regulatory

Electrical Safety  IEC 61010-1

Emission EMI/EMC  Class A limits of IEC 61326, FCC Part 15 Subpart B and ICES-003 

RoHS Compliant  YES

Pb Free HEAT  YES