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alicecpacheco · 5 years ago

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Decontamination and Reuse of Filtering Facepiece Respirators

In the tough times we are currently all facing, drastic measures and methods are necessary to ensure that we keep everyone safe and that especially applies to those on the front lines as primary healthcare providers. As has become commonly known, there is a critical shortage of N-95 masks currently. Below are recommendations from the CDC on how to sterilize & reuse them. The complete page with all information can be found by following this link. Disposable filtering facepiece respirators (FFRs) are not approved for routine decontamination and reuse as standard of care. However, FFR decontamination and reuse may need to be considered as a crisis capacity strategy to ensure continued availability. Based on the limited research available, ultraviolet germicidal irradiation, vaporous hydrogen peroxide, and moist heat showed the most promise as potential methods to decontaminate FFRs. This document summarizes research about decontamination of FFRs before reuse Introduction Reusing disposable filtering facepiece respirators (FFRs) has been suggested as a contingency capacity strategy to conserve available supplies for healthcare environments during a pandemic. Strategies for FFR extended use and reuse (without decontamination of the respirator) are currently available from CDC’s National Institute for Occupational Safety and Health (NIOSH). The surfaces of an FFR may become contaminated while filtering the inhalation air of the wearer during exposures to pathogen-laden aerosols. The pathogens on the filter materials of the FFR may be transferred to the wearer upon contact with the FFR during activities such as adjusting the FFR, improper doffing of the FFR, or when performing a user-seal check when redoffing a previously worn FFR. A study evaluating the persistence of SARS-CoV-2 (the virus that causes COVID-19) on plastic, stainless steel, and carboard surfaces showed that the virus is able to survive for up to 72-hours [1]. One strategy to mitigate the contact transfer of pathogens from the FFR to the wearer during reuse is to issue five respirators to each healthcare worker who may care for patients with suspected or confirmed COVID-19. The healthcare worker will wear one respirator each day and store it in a breathable paper bag at the end of each shift. The order of FFR use should be repeated with a minimum of five days between each FFR use. This will result in each worker requiring a minimum of five FFRs, providing that they put on, take off, care for them, and store them properly each day. Healthcare workers should treat the FFRs as though they are still contaminated and follow the precautions outlined in our reuse recommendations. If supplies are even more constrained and five respirators are not available for each worker who needs them, FFR decontamination may be necessary. Decontamination and subsequent reuse of FFRs should only be practiced as a crisis capacity strategy. At present, FFRs are considered one time use and there are no manufacturer authorized methods for FFR decontamination prior to reuse. On March 28, 2020, FDA issued an Emergency Use Authorization (EUA) permitting the Battelle Decontamination Systemexternal icon at Battelle Memorial Institute to be authorized for use in decontaminating “compatible N95 respirators.” The FDA websiteexternal icon should be checked to determine if other EUAs have been issued since the posting of this crisis capacity strategy guidance. Only respirator manufacturers can reliably provide guidance on how to decontaminate their specific models of FFRs. In absence of manufacturer’s recommendations, third parties may also provide guidance or procedures on how to decontaminate respirators without impacting respirator performance. Decontamination might cause poorer fit, filtration efficiency, and breathability of disposable FFRs as a result of changes to the filtering material, straps, nose bridge material, or strap attachments of the FFR. CDC and NIOSH do not recommend that FFRs be decontaminated and then reused as standard care. This practice would be inconsistent with their approved use, but we understand in times of crisis, this option may need to be considered when FFR shortages exist. An effective FFR decontamination method should reduce the pathogen burden, maintain the function of the FFR, and present no residual chemical hazard. The filter media in NIOSH-approved respirators varies by manufacturer. The ability of the respirator filter media to withstand cleaning and disinfection are not NIOSH performance requirements. The NIOSH’s National Personal Protective Technology Laboratory (NPPTL) and other researchers have investigated the impact of various decontamination methods on filtration efficiency, facepiece fit of FFRs, and the ability to reduce viable virus or bacteria on the FFRs. This research is summarized below. Crisis Standards of Care Decontamination Recommendations Because ultraviolet germicidal irradiation (UVGI), vaporous hydrogen peroxide (VHP), and moist heat showed the most promise as potential methods to decontaminate FFRs, researchers, decontamination companies, healthcare systems, or individual hospitals should focus current efforts on these technologies. Specifically, the effectiveness of using these methods should be explored further with specific FFR models based on the manufacturers’ support to better understand the impact on the respirator performance, including filtration and fit. The respirator manufacturer should be consulted about the impact of the method on their respirators prior to considering the use of any method. When information from the manufacturer or a third-party is available showing that respirators can be successfully decontaminated without impacting respirator performance, then FFRs decontaminated following those recommendations can be worn for any patient care activities. In the absence of guidance or when information is available that a respirator cannot be decontaminated without negatively impacting the performance, respirators may still be decontaminated. However, given the uncertainties on the impact of decontamination on respirator performance, these FFRs should not be worn by HCPs when performing or present for an aerosol-generating procedure. No current data exists supporting the effectiveness of these decontamination methods specifically against SARS-CoV-2 on an FFR. Other pathogens may also be present on FFRs and there is only limited data available for other pathogens. Further work is needed to assure SARS-CoV-2 and other pathogens are inactivated. Therefore, even after decontamination, these FFRs should be handled carefully. HCPs should take the following precautionary measures prior to using a decontaminated FFR:

Clean hands with soap and water or an alcohol-based hand sanitizer before and after touching or adjusting the FFR.

Avoid touching the inside of the FFR.

Use a pair of clean (non-sterile) gloves when donning and performing a user seal check.

Visually inspect the FFR to determine if its integrity has been compromised.

Check that components such as the straps, nose bridge, and nose foam material did not degrade, which can affect the quality of the fit, and seal.

If the integrity of any part of the FFR is compromised, or if a successful user seal check cannot be performed, discard the FFR and try another FFR.

Users should perform a user seal check immediately after they don each FFR and should not use an FFR on which they cannot perform a successful user seal check.

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uvhealsafeairs-blog · 1 year ago

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uvgi system | uvgi system manufacturer | best in duct uv air purifier | uvgi for hvac duct

Office Air Purifiers with the best UV light for HVAC System are finally here. UVHeal Safeair is a revolutionary air purifier for industrial use - a product that commercial spaces of all sorts can use. This is the best UV light for HVAC systems because it features automated shutdown, reduces energy consumption, and causes no harm in the process. Visit our Website for know more: - https://www.uvhealsafeair.com Reach Us: 9999941041 | Email: [email protected]

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uvhealsafeairs-blog · 2 years ago

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UVGI | UVGI in HVAC duct | UVGI technology-based air sanitization system | uvc light for hvac

It is important to note that UVGI technology should be used in conjunction with other measures, such as regular cleaning and maintenance of HVAC ducts, to ensure optimal air quality. Additionally, the placement of UV-C lamps within the ducts should be carefully considered to ensure that they are positioned in areas where they will have the most effective impact on air quality. Visit Our Website to know more: — bit.ly/3IkczCI Reach Us : Mobile: 9999941041 | Email: [email protected]

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magnetocleantech · 4 years ago

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As ASHRAE updates its recommendations on airborne Coronavirus, Magneto is ready to protect your loved ones!

Magneto Cleantech is ready with its patented technology Magneto Central Air Cleaner co-powered with UV-C to meet ASHRAE & CDC guidelines for airborne infection control.

Spreading like a common cold, the Coronavirus spread has struck India hard, making it the second country after the United States that reported 1 lakh cases in one day. The devastating wave 2.0 across India has been largely attributed to the airborne transmission of the virus. Previously, handwashing and maintaining social distancing were the main measures that WHO recommended avoiding contracting COVID-19, but unfortunately these measures do not prevent infection by inhalation of small droplets or aerosolized particles exhaled by an infected person, traveling tens of meters in the air carrying the viral content.

ASHRAE has been developing and disseminating guidance for control of airborne transmission of SARS-CoV-2 since April 2020 and has stated that Coronavirus is “likely” to spread through the air in your HVAC. In March 2021, recognizing the current situation, ASHRAE revised its previous recommendations on the transmission of coronavirus. Considering the rapid transmission during the second wave, ASHRAE's latest published standards and revised recommendations state, “Airborne transmission of SARS-CoV-2 is significant and should be controlled. Changes to building operations, including the operation of heating, ventilating, and air-conditioning systems, can reduce airborne exposures.”

The statement clearly indicated that COVID-19 has now made its place in one of the major airborne diseases. However, coronavirus is not the only infectious disease India is battling against. India is home to the world’s largest number of patients suffering from Tuberculosis (TB). Started a decade before coronavirus, TB has been causing much suffering and lost productivity. As a result, India records approx 2.3 million TB cases every year. Additionally, since 2009, Swine Flu (H1N1), which was declared a pandemic after its outbreak, has been infecting several thousand Indians each year.

What ASHRAE recommended, Magneto already anticipated.

Since its inception in 2018, Magneto Cleantech had already foreseen the growing need for a preventive measure in India’s battle against airborne diseases. The company’s focus has always been to build and deliver solutions that address the problem of airborne infections. Magneto CleanTech is a shining example endeavoring to solve the challenges posed by “Airborne Infectious spread in the Indian Subcontinent” much before Coronavirus came into the picture. It has disrupted the traditional approach of media-based filtration by developing Magneto Central Air Cleaner, a patented technology based on the principle of “Trap and Kill”.

Magneto Cleantech aims to positively transform the lives of Indians by delivering accessible, effective, and sustainable solutions to mitigate the risk of airborne diseases such as COVID 19, Swine Flu (H1N1), Influenza & Tuberculosis.

Mitigate the risk of Airborne infection with Magneto Central Air Cleaner – a commercial UV light-based air sanitization system.

Magneto Central Air Cleaner is based on a magnetic, filterless air purification process that works by harnessing the combined effect of impingement, polarisation, and agglomeration co-powered with UVGI. The UV C light sanitizer creates a dual polarity through an underlying dielectric mesh, trapping very fine particles and neutralizing bio-aerosols from the air. Its “Trap and Kill” process removes PM 2.5, disease-causing germs, allergens, and viruses in recirculating systems at 99.9% efficiency in indoor spaces.

How does the UV light sanitization component of the Magneto Central Air Cleaner work?

The Magneto Central Air Cleaner provides UVC light sanitization based on UVGI technology that ruptures the RNA of the virus using the photonic energy of the rays. When the DNA/RNA of the microorganisms is ruptured, they cannot reproduce and are inactivated.

Magneto’s UV C light sanitizer emits UV-C rays at a wavelength of 253.7 nm to disinfect the air from the air conditioner in indoor spaces.

Magento Central Air Cleaner co-powered with UVGI combines the power of UVC light with its “Trap and Kill” process to destroy harmful microorganisms and pollutants at very high efficiency. The central air purification system meets the ASHRAE and EUROVENT guidelines. The UV C light sanitizer inactivates the coronavirus and other airborne pathogens with over 99% efficiency. The commercial UV light sanitizer technology is recommended by international bodies, including CDC, to mitigate the risk of transmission of COVID-19.

Applications of the Magneto’s Central Air Purification System against Coronavirus.

The Magneto Central Air Cleaner is built for smaller indoor spaces and commercial spaces to sanitize the indoor air that the occupants breathe. The central air purification system by Magneto can be integrated with any new or existing air conditioning systems in the indoor space.

The commercial UV light sanitizer by Magneto follows the recommendations of ASHRAE and CDC to control the spread of airborne Coronavirus.

Get in touch with us at [email protected] for a UVGI solution to protect your indoor space against the spread of the novel Coronavirus.

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magnetocleantech · 5 years ago

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Can the Ultra Violet Germicidal Irradiation (UVGI) prevent the novel Coronavirus from Spreading

UVGI is one of the most effective air purification solutions which uses the destructive properties of UV light to kill pathogens, viruses, fungi and the novel Coronavirus.

As the world is trying to adjust to the new normal, with the onslaught of Coronavirus, there are several questions on how the “new normal” will be. Changes such as social distancing, wearing masks and other behavioral norms are being established, for commercial buildings, public places, restaurants, hotels and schools. The challenge of preventing the novel Coronavirus from spreading is still unsolved. The scientific community is experimenting with existing technologies to find a solution to disinfect public spaces to stop the transmission of the virus.

The most suitable technology, UVGI (UltraViolet Germicidal Irradiation) is being recommended by international bodies such as ASHRAE. UVGI in HVAC is proven effective in destroying viruses, bacteria, pathogens, mold and spores. Can a UV-C light sanitizer prevent the spread of the SARS-CoV-2 family of Coronavirus?

Let’s walk through the mechanism by which UV Radiation kills pathogens, thereby disinfecting the air.

The UV light from the sun is not visible to the naked eye because its wavelength is shorter than that of the visible light. The wavelengths of ultraviolet radiation sourced from the sun range from 100 to 400 nanometers (nm). Depending on the wavelength, they are classified into three categories:

UV-A, from 315 to 400 nm

UV-B, from 280 to 315 nm

UV-C, from 100 to 280 nm

The UV-C radiation, used in UV-C light sanitizer has the optimal range of 200-280 nm, effective for killing germs. As the highest germicidal effect is achieved at 265 nm, most of the UVGI air purification systems installed in HVAC use the wavelength 253.7 nm, for air sanitization.

The UV radiation ruptures the RNA of the microorganisms, preventing its reproduction and killing bacteria, viruses, fungi and other germs. With COVID-19, corporate offices, public spaces, hotels and homes are using UVGI solutions to sanitize their indoor air to protect against Coronavirus (SARS-CoV-2).

Magneto CleanTech, a pioneer in air sanitization has built several air purification systems that use UVGI either as a standalone product or integrated with the existing HVAC system or air conditioners. Their patented UVGI for HVAC and UV-C light sanitizer can be easily installed within minutes, has a low maintenance cost and is energy-saving.

Here are the 5 Magneto CleanTech UVGI solutions for air purification.

#1. The UGVI “Do it Yourself (DIY)” kit – Magneto CleanTech has a DIY kit that you can install in the Air Handling Unit (AHU) or the Fan Coil Unit (FCU). This one of a kind kit complies with ASHRAE. It is recommended by several international bodies for SARS-CoV-2 protection. Any HVAC person can install this kit in the air conditioner. Designed taking into consideration the safety and quality, it comes with a patented digital platform where you can track the product and it’s servicing. Magneto’s reputation for designing solutions that are easy to maintain and manage is irrevocable.

#2. Magneto Central Air Cleaner co-powered with UVGI – The Magento Central Air Cleaner (MCAC) uses the “trap and kill technology” to sanitize all kinds of indoor spaces. For air purification, they capture and continuously remove virtually all viruses, bacteria, fungi, pollen, pollutants and microbes upto the size of 0.1 microns. It has a very high filtration efficiency of ISO 16890 tested ePM 1.0 90%, meeting EUROVENT and ASHRAE recommendations for SARS-CoV-2 protection. The proprietary air sanitization technology is being used by clients ranging from corporate, hospitals, schools, hotels, government organizations to residential spaces to defend against the proliferation of Coronavirus.

#3. Magneto UVGI on-coil and UVGI in-duct solution – Available for air conditioning systems, the Magento UVGI on-coil and in-duct application is used for air sanitization in large spaces. The UVGI placed on-coil keeps the coil clean and disinfected. The UV light continuously falls on the coil, kills viruses and infections. The UVGI in-duct solution is used as a UV-C light sanitizer, disinfecting the air being circulated by the air conditioner. You can customize the irradiance, contact time and the microorganism kill rate.

#4. Upper Room UVGI from Magento CleanTech – The upper room UVGI is installed in buildings to reduce the spread of acute airborne infections, including COVID-19. Within the indoor environment, this UVGI interrupts the transmission of pathogens. It was traditionally used in hospitals and healthcare facilities with dimensions of user room and ceiling height 2.4 meters (8 feet). Now, the upper room UVGI is used for air sanitization in large workspaces and hotels as well.

#5. The portable UVGI tower by Magneto CleanTech – For spaces (both commercial and residential) that remain unoccupied for a few hours daily, Magneto’s portable UVGI tower sanitizes the air and the surfaces. The ready-to-use solution saves energy, is cost-effective and effectively controls infections transmitted by air. They can be switched on/off from outside the room for complete air purification. Millions of such units are installed globally with the advent of Coronavirus.