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LEV Testing and Local Exhaust Ventilation Inspections: Ensuring Better Air Quality in the Workplace
Maintaining clean, safe air in the workplace is not optional. For many industries, it is a legal requirement and a core part of protecting staff, visitors and the wider environment. Local Exhaust Ventilation (LEV) systems play a vital role in removing harmful airborne contaminants at source, but they only work effectively when they are properly designed, installed and regularly tested. Sigma Engineering provides professional LEV testing and local exhaust ventilation inspecti
Jack Spencer
Dec 22, 20253 min read
Commercial Kitchen Extraction and Canopy Systems: A Complete Guide for Compliance and Efficiency
Running a commercial kitchen is never simple. Heat, grease, fumes and constant pressure mean your extraction and ventilation system must work hard every day. When it doesn’t, safety suffers, energy costs rise and issues with compliance appear fast. Sigma Engineering helps kitchens stay efficient and fully compliant through expert design, installation and maintenance of commercial extraction and canopy systems. This guide breaks down what you need to know to stay on top of
Jack Spencer
Nov 24, 20253 min read


Choosing the Right Heat Recovery Ventilation (HRV & MVHR Systems) for Commercial Buildings
At Sigma Engineering , we understand that effective ventilation is not just about the movement of air: it’s about health, sustainability and operational efficiency. Based in Irvine, Ayrshire, and serving clients across Glasgow and Central Scotland, we specialise in designing bespoke, high-performance ventilation and extract systems for commercial buildings. Let’s look at the key considerations for choosing the right heat recovery ventilation system for your building, whether
Jack Spencer
Oct 27, 20253 min read


The Importance of Industrial Air Filtration and Ventilation for Safer Work Environments
Industrial environments, whether they’re commercial kitchens or manufacturing plants, are prone to airborne hazards. Dust, fumes, smoke,...
Jack Spencer
Sep 28, 20253 min read


Why Opening The Window Isn't Enough
This is the air we breathe! "Just open the window". It's a common 'solution' in kitchens, bedrooms, offices and classrooms. But to tell you the truth, it doesn't do the job. Cracking the window in an office where the air feels suspiciously stuffy by 10 am doesn't fix your problem and is definitely not practical. Cracking open a window is not a ventilation strategy; it's a quick fix (and a guaranteed complaint from whoever's parked nearest to the window). Opening the windows d
Ruby James
Jul 3, 20252 min read


Densley meets with Dr. Philippa Whitford MP to discuss a Robust Ventilation Strategy (RVS) against COVID-19
It is the simplest things in life that can have the biggest impact on the world’s greatest and most-baffling problems. But once discovered, their effectiveness and basic principles never change. In the case of the novel coronavirus, simple things like the washing of hands, the wearing of masks, and the application of the basic principles of ventilation, can capture and remove harmful substances from our breathing zone and can have an effective and lasting impact against COVI
Densley James
Oct 24, 20201 min read


Scientists call for information campaign as evidence on role of poor ventilation mounts
At last, the importance of ventilation as a tool against COVID- 19 is being recognised. The Guardian Saturday 24 October 2020 Nicola Davis Science correspondent UK could be urged to keep windows open in effort to curb Covid-19 Scientists call for information campaign as evidence on role of poor ventilation mounts Britons could be urged to throw open the windows in an effort to keep coronavirus at bay as scientists call for a public information campaign to stress the import
Densley James
Oct 23, 20202 min read


Five ways to avoid catching the virus indoors
A Colleague of mine sent me this BBC news article. I wanted to share because at Sigma EPD we also believe that well designed ventilation is central to defending our family, friends, customers and employees from this and other pandemics and viruses year on year. Our defence is a Robust Ventilation Strategy (RVS) going forward. Please read below. Covid-19: Five ways to avoid catching the virus indoors By David Shukman BBC News science editor Good ventilation could be the key
Densley James
Aug 30, 20204 min read


Give Them Confidence To Return
How can you reassure them So, it’s official. Scotland is reopening! However, after conversations with friends, colleagues and family, there seems to be a distinct lack of confidence as it relates to re-entering enclosed public places including restaurants, where the wearing of a mask would encumber our ability to engage in social activities such as eating and drinking. The reality is, in this country, we spend most of our winter months indoors. It is also a fact that every y
Densley James
Jul 14, 20204 min read


A Ventilation Strategy Against COVID19
Extracting The Virus As social distancing is being relaxed in England and would soon become a reality here in Scotland, let us use this time wisely. It is important that every establishment has a clear ventilation strategy that would help control the spread of the coronavirus. Please see tips from the Federation of European heating, Ventilation and Airconditioning Associations (REHVA) guidance document below. “Latest studyxvii concluded that aerosol transmission is plausible,
Densley James
Jun 22, 20202 min read


Ventilation With UVGI and ESP Technology Aids Safer Reopening
Ultraviolet Germicidal Irradiation (UVGI) and Electrostatic Precipitation (ESP) kills viruses In line with our commitment to help our customers to reopen safely and deliver great Indoor Air Quality, Sigma Engineering Product Design Ltd. (SigmaEPD) has teamed up with Purified Air Ltd. to deliver excellent air quality to indoor spaces in Scotland. We use Ultraviolet Germicidal Irradiation (UVGI) and Electrostatic Precipitation (ESP) to kill the virus in ducted systems and in ou
Densley James
Jun 17, 20201 min read


VENTILATION - CONFIDENCE TO RETURN
Ventilation and Safe Reopening Phew! What a time. The effects of the lockdown have left us all wondering what the future normal will look like. Events of the past three months have left everything to the imagination but have not done much to diminish the sense of vacuous surrealness that we all feel. But the human spirit has been gifted the ability to bounce back from tragedy. One of the great ingredients of bounce back is confidence, but our confidence has been knocked by th
Densley James
Jun 10, 20203 min read


A Fresh Look at Toilet Ventilation
Toilet Ventilation In A Post - Covid World Toilets in hospitality venues will become a key area of focus as we begin the process of restarting the economy. Except for the entrance to buildings, it is the toilet that sees the highest concentration of traffic in dine-in venues. People move in and out of toilets, touching door handles, taps and flush handles. These hard surfaces provide a haven for the Coronavirus as it waits for its next host. The surfaces within the toilet bec
Densley James
Jun 1, 20202 min read
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