UK FOCUS vii Cost-effective CO2 monitoring solutions can help prevent COVID transmission


Recent advice from the HSE states that by maximising the flow of natural fresh air in indoor spaces, the risk of COVID transmission can be reduced by up to 70%. They also recommend the use of a CO2 CO2


monitor to better understand air quality within specific areas. can build up in the air the same way droplets of the virus can, so by monitoring CO2 levels you will also be identifying poorly ventilated workspaces which increase the likelihood of transmission. Improved air flow can be achieved through natural ventilation and mechanical systems such as ducts or vents.


Honeywell has recently introduced a cost-effective and user-friendly indoor monitor - the Honeywell Transmission Risk Air Monitor (HTRAM). This new real-time device analyses specific air quality conditions and alerts users when conditions are present that may increase the risk of exposure to airborne viral transmission in a certain area. This device is available in the UK through Honeywell’s authorised distributer Shawcity.


The Honeywell Transmission Risk Air Monitor* is an easy-to-deploy, portable device that measures carbon dioxide and features a proprietary risk alerting system based on different activity levels within a room. This allows end users to proactively improve indoor ventilation which, according to the U.S. Centers for Disease Control and Prevention1, can help reduce the spread of certain diseases and decrease the risk of exposure among building occupants.


Research conducted by scientists at the University of Colorado2,3 has shown that real-time monitoring of indoor ambient air can be an indicator of increased risk of airborne viral transmission, utilising different levels of risk-based factors such as CO2


concentration levels and the type of human activity in the area.


Using this guidance and algorithms, Honeywell has identified air quality conditions that are driven by common activities and variables such as average room size, number of people present, breathing rate and duration. The HTRAM comes with three pre-programmed indoor activity settings: Low activity (cinemas, libraries & classrooms), medium activity (restaurants, offices & small clinics), and high activity (gyms, indoor arenas & recreation centres). The device is recommended for coverage of 800-1000 square feet.


For each setting, the monitor provides indications using a traffic light pattern (green, yellow, or red) and a sound alarm so users can be aware of conditions that may increase the risk of airborne transmission based on detectable CO2


levels and take steps such as improving ventilation.


The user-friendly HTRAM is a small, portable and lightweight unit that comes with a 1-year limited product warranty. Its cutting-edge non-dispersive infra-red technology (NDIR) ensures a reliable, precise measurement and the HTRAM not only monitors CO2


level itself makes and area unsuitable or unsafe for breathing. , it also measures temperature and relative humidity. The instrument will emit a single ‘beep’ when there is a medium level alert and 2 ‘beeps’ when the


levels are high. While this instrument cannot monitor for any airborne viruses, it is an effective tool for lowering the risk of contamination. HTRAM has been designed specifically to warn operators when CO2 levels, humidity and temperature have made the spread of viruses most likely; it is not used to define conditions in which the CO2


Personal dust monitor declared as the most accurate on the market by Health and Safety Executive


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Next-generation sounding system to advance meteorological upper air observations


Vaisala have announced the launch of Vaisala Cirrus Sounding System MW51, a state-of- the-art sounding system that delivers industry-first capabilities, including readiness to conduct simultaneous upper air observations, to provide unprecedented visibility into rapidly changing weather conditions and enhance forecasting accuracy.


The Vaisala Cirrus Sounding System MW51 features proprietary radio technology which enables superior operational performance and dependability over a long life cycle. Its new, compact design is purpose built for operating in versatile environments while an IP54 rating provides excellent protection against dust and water. This intuitive and easy to use with access to real-time sounding status information and comprehensive diagnostics. The MW51 also provides protection against data threats and unauthorised access.


“Inventing unsurpassed weather and environmental solutions has reflected the spirit of Vaisala for 85 years, and atmospheric sounding technology has always been at the heart of it. The WMO Global Observing System network releases more than 1,400 radiosondes every day, and the largest positive impact for global numerical weather predications is achieved with Vaisala upper air sounding products,” said Aki Lilja, Soundings Director, Weather and Environment, Vaisala. “MW51 demonstrates our continued commitment to providing exceptional weather prediction capabilities to meteorological agencies across the world.”


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Nearly a million people died from the inhalation of particulates in the workplace last year. Trolex is on a mission to help change this through simple, accurate real-time dust monitoring in even the harshest of industrial environments.


Trolex have designed a new personal dust monitor to be used as a wearable, mountable, or fixed in-cab personal protective device. Simply switch it on and you are instantly detecting harmful particulates in the atmosphere.


An audible alarm warns you when regulated limits have been reached, so you are always protected.


The XD One has been independently verified in tests carried out by the Health and Safety Executive to be the most accurate personal dust monitor on the market today. Accurate to laboratory-grade standards and fully customisable STEL and TWA monitoring with associated alarms for PM1, PM2.5, PM4.25 and PM10.


There is almost zero maintenance, as all it requires is a one-minute compliance test every 3-6 months. That is less maintenance time than other dust monitoring devices require in a single day.


The XD One is always recording full TSP data, and stores this analysis for up to 10 years, using its Free BreatheLITE software.


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Near reference method accuracy with a small price tag.


With the ES-405 Simultaneous Particulate Profiler continuous, real-time measurements of


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10 PM4 PM2.5 PM1


for both indoor and outdoor environments. Applications include:


Air quality surveillance ET enviro technology services 01453 733200 sales@et.co.uk


Rapid source apportionment determination Emergency responder applications Near-roadside monitoring Particulate emission studies


Configurable data output averaging intervals Wall-mounted or on vertical mast Rugged weather proof enclosure www.et.co.uk WWW.ENVIROTECH-ONLINE.COM IET NOVEMBER / DECEMBER 2021


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