1. Air Filtration Explored: How Pre-Filters Work

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    In today’s fast-paced world, concerns about air quality have become increasingly prevalent. Whether in our homes, offices, or public spaces, ensuring clean, breathable air is paramount to maintaining our health and well-being. One crucial component of air purification systems is the pre-filter. In this article, we delve into the workings of pre-filters, shedding light on their importance and functionality.

    Understanding Pre-Filters: The First Line of Defence

    Pre-filters serve as the initial defence mechanism in air filtration systems. Positioned as the first layer of protection, they are tasked with capturing larger particles such as dust, lint, organic material, insects, etc before the air passes through the main filter. By trapping these larger contaminants, pre-filters prevent them from clogging the secondary filter, thus prolonging its lifespan and optimising its efficiency.

    How Do Pre-Filters Work?

    Pre-filters operate on a simple yet effective principle: mechanical filtration. Comprising densely woven materials like fiberglass, polyester, or cotton, pre-filters create a barrier through which air passes. As air flows through the pre-filter, larger particles are unable to penetrate the fibres and are thus captured, both on the surface and within the depth of the filter media.

    The captured particles adhere to the fibres, effectively removing them from the air stream. Over time, as the pre-filter accumulates debris, necessitating periodic replacement to maintain optimal performance.

    Benefits of Pre-Filters

    Enhanced Air Quality: By capturing larger particles, pre-filters contribute significantly to improving indoor air quality. This is particularly beneficial for individuals with allergies or respiratory conditions, as it reduces the presence of common allergens and irritants in the air.

    Extended Filter Life: The presence of a pre-filter prolongs the lifespan of the secondary filter by preventing it from becoming clogged with larger debris. This not only saves on maintenance costs but also ensures consistent filtration efficiency over time.

    Improved Energy Efficiency: A clean pre-filter allows air to flow more freely through the system, reducing strain on the fan and motor. This can lead to energy savings and increased HVAC system efficiency.

    Cost-Effectiveness: Pre-filters are relatively inexpensive compared to main filters. By investing in a quality pre-filter, you can protect your secondary filter and extend its longevity, ultimately saving on replacement costs.

    Choosing the Right Pre-Filter

    When selecting a pre-filter for your air filtration system, several factors should be considered:

    Compatibility: Ensure that the pre-filter is compatible with your existing air purification system. Check the specifications provided by the manufacturer to determine the appropriate size and type of pre-filter required.

    Maintenance Requirements: Consider the ease of maintenance when choosing a pre-filter. Opt for models that are easy to replace, as regular maintenance is essential for optimal performance.

    Durability: Choose pre-filters made from durable materials that can withstand frequent use and handling and challenging operating conditions. This ensures long-term reliability and effectiveness.


    Pre-filters play a crucial role in air filtration systems, acting as the first line of defence against airborne contaminants. By capturing larger particles and preventing them from reaching the main filter, pre-filters enhance air quality, extend filter life, and improve overall system efficiency.

    When selecting a pre-filter, it’s essential to consider factors such as compatibility, efficiency rating, maintenance requirements, and durability to ensure optimal performance and long-term value. By investing in quality pre-filtration, you can breathe easier knowing that your air purification system is working effectively to provide you with clean, healthy air.

    If you require any assistance with your filters /Air filtration then we are more than happy to help.

  2. What To Expect From An Air Handling Unit (AHU) Service

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    In the realm of HVAC systems, the Air Handling Unit (AHU) plays a crucial role in maintaining indoor air quality and comfort within commercial and industrial spaces. As with any mechanical system, regular maintenance is essential to ensure optimal performance and longevity. However, for those unfamiliar with AHUs and their service requirements, knowing what to expect from a professional AHU service can be beneficial. In this blog post, we’ll delve into the key aspects of AHU servicing and what you can anticipate from a reputable service.

    Comprehensive Inspection

    A thorough inspection is the cornerstone of any AHU service. Expect the service technicians to meticulously examine all components of the unit, including filters, coils, fans, dampers, belts, and bearings. This comprehensive assessment helps identify any issues or potential areas of concern that could affect the unit’s performance or compromise indoor air quality.

    Cleaning and Maintenance

    AHUs are prone to accumulating dirt, dust, and other contaminants over time, which can hinder airflow and reduce efficiency. A professional AHU service will involve thorough cleaning of all components, including coils, filters, and ductwork. Additionally, belts will be checked for tension and wear, and lubrication may be applied to moving parts to ensure smooth operation.

    Filter Replacement

    Filters are integral to trapping airborne particles and pollutants, preventing them from circulating throughout the building. During an AHU service, filters will be inspected for dirt buildup and damage. Depending on their condition, filters may be cleaned or replaced with new ones to maintain optimal air quality and system efficiency.

    Performance Testing

    Once cleaning and maintenance tasks are complete, the AHU will undergo performance testing to ensure everything is functioning as it should. This may involve measuring airflow, temperature differentials, and humidity levels to verify that the unit is operating within specified parameters. Any discrepancies or inefficiencies will be addressed promptly to restore optimal performance.

    Diagnostic Analysis

    In some cases, AHU servicing may uncover underlying issues that require further investigation. A reputable service provider will have the expertise and diagnostic tools to identify the root cause of any problems and recommend appropriate solutions. Whether it’s a faulty sensor, malfunctioning component, or air leakage, addressing these issues promptly can prevent more significant problems down the line.

    Recommendations for Optimisation

    Beyond addressing immediate concerns, a professional AHU service may also include recommendations for optimising the unit’s performance and energy efficiency. This could involve upgrading outdated components, implementing preventive maintenance schedules, or integrating advanced control systems to enhance overall system performance and reduce operating costs.

    The final part of the AHU service, Westbury Group will provide you with a comprehensive report detailing the findings and actions taken during the service. This report serves as a valuable reference, providing insights into the condition of your AHU and any maintenance or repairs performed. To enhance clarity and transparency, the report may include photographs documenting the condition of key components before and after servicing. These visual aids not only help you understand the work that was done but also provide a clear picture of the AHU’s overall health. Armed with this detailed report, you can make informed decisions regarding ongoing maintenance and budgeting for future upgrades, ensuring the continued reliability and efficiency of your HVAC system.


    In summary, a comprehensive AHU service encompasses a range of tasks designed to ensure the efficient operation of this critical HVAC component. From thorough inspections and cleaning to performance testing and diagnostic analysis, a reputable service provider. Westbury Group will leave no stone unturned in keeping your AHU in top condition. By investing in regular AHU servicing, you can prolong the lifespan of your system, improve indoor air quality, and minimise costly downtime. So, the next time you schedule an AHU service, know what to expect and reap the benefits of a well-maintained HVAC system.

    Feel free to contact us if your Air Handling Unit Service is due.

  3. 5 Dangers of Poor Air Filtration in the Workplace

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    Clean air is often taken for granted, but its importance in the workplace cannot be overstated. Poor air filtration in various industries can have serious consequences for both employees and the business itself. In this article, we’ll explore five dangers associated with inadequate air filtration across different workplaces.

    1. Health Risks:

    One of the most significant dangers of poor air filtration is the increased health risks it poses to employees. In manufacturing facilities, construction sites, and other industrial workplaces, airborne contaminants like dust, chemicals, and particulate matter can accumulate.

    Prolonged exposure can lead to respiratory problems, allergies, and even more severe health issues.

    In healthcare settings, inadequate air filtration can raise the risk of infections among patients and staff, jeopardising the well-being of all involved.

    2. Reduced Productivity:

    In offices and corporate environments, poor air quality can silently chip away at productivity. Employees working in spaces with subpar air filtration may experience fatigue, difficulty concentrating, and increased sick days due to health problems caused or exacerbated by poor air quality. As a result, businesses suffer from decreased efficiency and missed deadlines.

    3. Compliance and Regulatory Issues:

    Many industries are subject to strict regulations regarding indoor air quality. Failure to meet these standards can result in legal consequences, fines, and damage to the reputation of the company. In the catering industry, for example, non-compliance with food safety regulations related to air quality can lead to fines and closures. Similarly, healthcare facilities must adhere to stringent air quality regulations to protect patients and maintain compliance with standards, such as HTM-03.

    4. Equipment and Infrastructure Damage:

    Poor air filtration can harm not only human health but also equipment and infrastructure. Contaminants in the air can clog and damage machinery and HVAC systems, leading to costly cleaning, repairs and replacements.

    In laboratories and cleanrooms, airborne particles can compromise research integrity and the functionality of sensitive equipment.

    5. Negative Impacts on Customer and Employee Satisfaction:

    In the hospitality and retail sectors, customer and employee satisfaction are paramount. Poor air quality can deter customers from returning to a restaurant or retail store. In the light commercial industry, employees may experience discomfort and dissatisfaction, leading to decreased morale and performance.

    To conclude, poor air filtration in the workplace poses a multitude of dangers, ranging from health risks and reduced productivity to compliance issues and damage to equipment.

    To mitigate these risks, employers and business owners should prioritise high-quality air filtration systems, regular maintenance, and compliance with relevant regulations. Clean and healthy air not only benefits employees’ well-being but also contributes to the success and reputation of the business.

    Investing in clean air is an investment in the health, productivity, and longevity of the workplace. It’s a silent yet critical factor that should never be overlooked. If you feel that your organisation is suffering from any of the above, please get in touch. We can help get you back on track.

  4. 3 Benefits of Optimising Air Filtration In The Workplace

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    In the modern workplace, where employees spend a significant portion of their time indoors, maintaining a healthy and comfortable environment is paramount. Air quality plays a crucial role in ensuring the well-being and productivity of individuals within a workspace. The implementation of effective air filtration systems is essential to address airborne pollutants, allergens, and contaminants that can adversely impact indoor air quality.

    Airborne particles, such as dust, pollen, and mould spores, can contribute to respiratory issues and allergies among employees. Additionally, pollutants generated from various sources, including building materials and office equipment, may circulate in the air, posing health risks. Without proper filtration, these contaminants can accumulate, leading to discomfort, decreased concentration, and, in the long term, potential health issues.

    Beyond health considerations, effective air filtration systems contribute to the longevity and efficiency of HVAC equipment. Regularly filtered air prevents the accumulation of dust and debris in ventilation systems, ensuring that heating, ventilation, and air conditioning units operate at peak performance. This, in turn, results in energy efficiency, cost savings, and a reduced environmental impact.

    This article explores the three key benefits of optimising air filtration in the workplace and highlights Westbury’s unparalleled expertise in manufacturing air filters since 1969.

    1: Healthier Workforce, Improved Productivity

    A meticulously designed air filtration system plays a pivotal role in cultivating a workplace environment conducive to employee health and well-being. Airborne pollutants and allergens, including dust, pollen, and mould spores, are efficiently captured and removed, facilitating a healthier indoor setting.

    As employees breathe cleaner air, the risk of respiratory issues and allergies diminishes, paving the way for improved overall health. This commitment to employee well-being translates into tangible benefits, including heightened productivity, reduced absenteeism, and an elevated sense of job satisfaction.

    Establishing a robust air filtration system is crucial for businesses looking to boost the health and productivity of their workforce, ensuring employee well-being and satisfaction.

    2. Enhanced Energy Efficiency and Cost Savings

    Beyond the immediate health benefits, optimising air filtration in the workplace contributes to the longevity and efficiency of Heating, Ventilation, and Air Conditioning (HVAC) systems.

    The prevention of dust and debris accumulation within ventilation systems is crucial for maintaining peak performance. When ventilation systems operate with clean and regularly filtered air, the HVAC units experience reduced strain and wear. This directly translates into lower energy consumption and, consequently, decreased operational costs for businesses.

    Furthermore, clean HVAC systems contribute to improved indoor air quality, reducing the likelihood of system breakdowns and the need for frequent repairs. This, in turn, results in additional cost savings by minimising maintenance expenses and prolonging the lifespan of HVAC equipment. Businesses that invest in advanced air filtration solutions not only benefit from immediate energy savings but also experience reduced long-term maintenance costs, providing a significant return on investment.

    By implementing advanced air filtration solutions, businesses can significantly reduce their carbon footprint, contributing to a greener and more eco-conscious workspace. This commitment to environmental responsibility not only aligns with global sustainability goals but also positions businesses as leaders in responsible and efficient resource management.

    3. Extended Lifespan of HVAC Equipment

    Airborne contaminants pose a constant threat to the efficiency and lifespan of HVAC equipment. The strategic implementation of optimised air filtration acts as a proactive defence, preventing the buildup of pollutants within the system. This, in turn, facilitates a cleaner and more efficient operation of HVAC units, ensuring both a healthier indoor environment and an extended lifespan for the equipment.

    Investing in high-quality air filtration solutions not only results in reduced maintenance costs. By prioritising the longevity and performance of HVAC equipment, businesses can allocate resources more efficiently, fostering sustainable practices and ensuring long-term operational success.

    The Importance of Air Filtration in Maintaining a Healthy Workplace

    In essence, prioritising air filtration in the workplace is a proactive measure to safeguard the health and comfort of employees, enhance productivity, and create a conducive environment for success. Employers who invest in high-quality air filtration solutions, such as those provided by Westbury, demonstrate a commitment to the well-being of their workforce and the overall success of their organisation.

    Westbury’s expertise in manufacturing air filters since 1969 positions them as a trusted partner for businesses seeking top-tier air filtration and HVAC solutions. Prioritising air quality not only aligns with the well-being of employees but also reflects a commitment to creating a workspace that cultivates success and sustainability.

    Take the first step to developing a healthier, more productive workplace by exploring innovative air filtration solutions tailored to your specific needs. Request a free consultation today and embark on a journey toward enhanced well-being and efficiency for your employees and your organisation.

    View our Air Filter solutions here >>

  5. SME News Reveals Westbury Group as the 2023 Winners of the Northern Enterprise Awards

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    SME News is delighted to announce the winners of this year’s Northern Enterprise Awards.

    The fifth edition of our Northern Enterprise Awards has landed, and we’re extremely excited to showcase our awardees in yet another impressive instalment of this much loved programme.

    Sweeping across a myriad of industries, of different categories and sizes, we explore the gems of the North in the UK’s business landscape. The aim of this programme is the same as ever – to highlight the heroic impact made by the best of the best within their sectors, as they aid their individual clients and customers in a plethora of ways, enriching their surrounding communities.

    Ultimately, our Northen Enterprise Awards are an amalgamation of fine companies and people who, individually and collectively, elevate our experience of business in the North of the UK – and beyond! They influence the rest of the country with their dedication to excellence, devotion to client satisfaction, and awe-inspiring stories of success.

    Awards Coordinator Kaven Cooper commented on the success of this year’s mighty programme and our winners: “The Northen Enterprise Awards are a shining beacon of light for businesses and a chance for us to celebrate the strengths of the North. I know our followers will be delighted to learn more about our winners and how they achieved their greatness. Congratulations to our awardees, and I hope 2024 is every bit as successful – if not more!”

    To find out more about these prestigious awards, and the dedicated enterprises that have been selected for them, please visit where you can view our winners supplement and full winners list.

  6. Case Study: Air Filtration Enhancement in a Major Logistics Hub

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    Sector: Logistics/Warehousing

    Location: Central England


    The Westbury Group, responding to the needs of a rapidly growing logistics sector in the UK, undertook a project to enhance air filtration systems in a large logistics hub.

    This case study details the project’s challenges, solutions, and outcomes, highlighting our innovative approach to optimising air quality and energy efficiency within a demanding operational environment.


    The logistics and warehousing sector in the UK is characterised by its non-stop operation and a combination of activities that generate particulate matter.

    Our client, who operate a substantial logistics hub, faced significant challenges in maintaining air quality crucial for the health and safety of staff and the efficiency of operations.

    The Challenge

    The client’s existing air filtration system in their Air Handling Units (AHUs) were inadequate, leading to several problems:Filter Collapse: (Pictured) Existing panel filters were collapsing due to moisture and particulate overload.

    High Energy Consumption: The inefficient filtration system contributed to excessive energy use.

    Space Limitations: The AHUs had limited space, hindering any substantial improvements.

    Detailed Analysis and Approach:

    Westbury’s team conducted a thorough assessment of the existing setup. The findings led to a multi-pronged approach:

    Upgrading Pre-Filters: The collapsing filters were replaced with advanced, high-capacity pre-filters, capable of handling greater particulate loads without collapsing.

    Innovative Secondary Filtration: A slimline, high-capacity secondary filter was introduced, (Pictured) fitting into the constrained space while significantly improving air quality. This as significant as another manufacturer had told the client this would not be possible. This fact underlines Westbury’s commitment to achieveing what others can or will not.

    Improved Mounting Arrangements: The installation of adapted clips facilitates easier maintenance and filter replacement, reducing downtime.

    Protective Air Intake Screens: These screens add an extra layer of protection, extending the life of other filters and enhancing overall air quality. Their design allows for easy removal and cleaning.

    Implementation Process

    Pre-Implementation: The facility struggled with failing panel filters and unprotected air intakes, leading to reduced air quality and a high maintenance requirement.

    Post-Implementation: Enhanced panel and secondary filters were installed, using existing frames but with intakes, offering additional filtration and prolonging filter life.

    Results and Impact

    The implementation led to multiple benefits:

    Improved Air Quality: The additional filtration stages significantly improve air quality within the facility.

    Reduced Energy: The higher-capacity pre-filters result in lower energy consumption, aligning with sustainability goals.

    Ease of Maintenance: The redesign of the mounting system simplifies the process of changing filters, reducing labour and downtime.

    Cost-Effective: Using the existing mounting frames avoids the need for expensive AHU modifications.

    Following the initial success, the solution was replicated across six more AHUs, leading to a plant-wide improvement in air quality and energy efficiency.

    Long-Term Benefits

    The project’s success is expected to yield long-term benefits:

    Sustained Air Quality Improvements: Enhanced filtration ensures a healthier environment for personnel and better preservation of goods.

    Ongoing Energy Savings: The efficient system contributes to reduced operational costs and aligns with environmental sustainability initiatives.

    Reduced Maintenance: The ease of filter replacement and the durability of the new system reduce the burden on maintenance teams.

    In Conclusion

    This example of The Westbury Group’s innovative air filtration project represents a benchmark in environmental and operational excellence. Through a comprehensive approach addressing the challenges of filter collapse, high energy consumption, and space limitations, we not only improved working conditions but also set a precedent for sustainable operations in similar facilities.

    Key to this success was the strategic replacement and upgrading of existing filtration systems and the introduction of high-capacity pre-filters, innovative secondary filtration, and protective air intake screens. These enhancements not only improved the hub’s air quality but also streamlined maintenance processes, reducing energy consumption. The use of existing infrastructure mitigated additional costs.       

    The project’s success extends beyond immediate improvements in air quality and energy efficiency. It demonstrates a proactive approach to employee health and safety, and a commitment to environmental sustainability, aligning with broader global initiatives.

    The replication of this solution across additional AHUs within the facility shows both scalability and adaptability, setting a model for other logistics hubs facing similar challenges.

    This project is a testament to how innovative engineering solutions can simultaneously address environmental concerns, operational efficiency, and employee well-being across the sector.

    Reach out to Westbury today to discover how your staff can enjoy the benefits of even cleaner air.

  7. Air Filtration and Sustainability: Making for Greener and Safer Working Environments

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    The importance of embracing sustainability in all aspects of life is becoming more and more widespread. An area of particular interest is the workplace, where we spend most of our waking hours.

    Often taken for granted, the quality of the air we breathe at work plays a pivotal role in ensuring our health and wellbeing. In this article we’ll take a look at how the combination of air filtration and sustainability can contribute to greener and safer working environments for everyone.

    The Importance of Air Quality in Workspaces

    Air quality within workspaces extends beyond mere comfort, it directly impacts our health. Poor air quality can lead to allergies and breathing difficulties such as asthma (or worse).

    Additionally, it can negatively affect productivity and morale. Fortunately, employers are beginning to acknowledge the significance of clean air in maintaining a happy and healthy working environment.

    What Do We Mean By Air Quality?

    In simple terms air filtration involves eliminating pollutants and contaminants from the air we breathe. This is accomplished through a combination of filtration methods, along with mechanical and chemical processes.

    Mechanical filters effectively trap particles while chemical methods help remove gases and odours.

    The effectiveness of an air purification system is often evaluated based on its ability to capture microscopically small particles, including bacteria that are invisible to the naked eye.

    When it comes to air purification, sustainability involves using systems and practices that not only effectively clean the air around us but also have a positive environmental impact. This includes considering the energy efficiency of filtration systems, the materials used in filters and the carbon footprint of the entire process.

    Energy Efficient Filtration Systems

    Traditional air filters consume a lot of power and newer technologies are focused on reducing this.

    For example, incorporating advanced, more environmentally efficient design into filters can improve functionality, effectively minimising the energy required to move air through the system.

    Eco Friendly Materials and Practices

    The choice of materials for air filters is crucial for promoting sustainability. 

    Washable filters are quickly gaining popularity as they reduce waste and eliminate the need for new replacements. Moreover, there are now filters made from recycled materials, cutting costs, and improving efficiency.

    The benefits of implementing them are clear. Firstly, they promote health, leading to reduced illness rates and increased productivity.

    Secondly, they reflect a commitment to responsibility, which can enhance your company reputation. Energy efficient systems also result in cost savings, allowing you to reap the rewards of your new sustainable practice.

    While the advantages are obvious, optimising air filtration systems can present challenges. The installation costs for systems can be high and there may be a need for staff training. Finding the right balance requires careful consideration and planning.

    This of course takes time but it’s indisputable this investment pays rich dividends.

    Looking towards the future of air filtration there is a clear trend favouring more sustainable and efficient systems.

    With the increasing awareness of concerns, regulatory bodies may enforce more robust standards for air quality and sustainability in workplaces.

    Westbury, as industry leaders in air filtration technology, keep a constant watch on such developments and are ready and able to comply with changes in sustainability regulation.

    Incorporating sustainability into air filtration is becoming a major factor when choosing a supplier.  By investing in environmentally friendly air filtration, companies can not only save money by enhancing the wellbeing and productivity of their employees but also contribute to the bigger picture of environmental sustainability.

    As technology continues to advance, we can anticipate even more innovative solutions in this area, further improving our life at work and the overall health of our planet.

    Reach out to Westbury today to discover how your staff can enjoy the benefits of even cleaner air.