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  1. Air Filter Selection Guide

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    When it comes to selecting HVAC air filters, there are several factors to consider to ensure that you choose the right options for your application:


    1. Filter Efficiency
    The first selection consideration is the efficiency rating, or the capability of the filter to capture particulate. The higher the efficiency, the more effective the filter will be in capturing smaller particles. You can read more about filter efficiency here.


    2. Airflow Resistance
    Resistance to airflow is crucial factor to consider when selecting any air filter. Higher efficiency filters generally have a greater resistance to airflow, which brings with it increased energy consumption. Filter selection should also be considered in the context of the HVAC system as a whole, to ensure that the fan and other components can deliver sufficient quantities of air, allowing for the resistance to airflow that the filter(s) present.

    The ideal filter selection should deliver a low resistance to airflow to minimise energy costs. A filter that can maintain low resistance for a long period of time, will deliver the lowest costs of operation. You can read more about minimising life cycle costs by clicking here.

    3. Particle Size
    The size of the particulate that the filters will be exposed to should also be considered when selecting air filters – different filters are designed to capture specific particle sizes. In many cases a multi-stage approach is preferred, with coarse pre-filters removing large particulate and higher efficiency secondary filters positioned downstream to remove finer particulate.

    4. Environmental Factors
    Local environmental factors, such as the concentration of particulates and proximity to sources of air contamination should also be considered when selecting an air filter. It is important to remember that these factors are variable and will be influenced by factors such as seasonal changes, nearby construction works, time of day, etc.  This should be considered when selecting filtration and planning appropriate maintenance regimes.


    Taking these factors into account demonstrates that appropriate filter selection is vital for achieving and maintaining appropriate air quality and optimal system performance. Consideration of filter efficiency, airflow resistance, particulate size and environmental conditions will all be important. The correct selections in the balance of these considerations will ensure that your systems can operate efficiently and effectively to recover lost revenues, reduce costs and deliver improved efficiencies. 

    Contact Westbury today to arrange for a FREE of charge site survey to assess how your systems can be optimised.

  2. Let Westbury take care of your filter waste

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    Westbury’s high quality air filters perform a vital role in protecting building occupants and processes, trapping contaminants, ensuring cleaner air, & often delivering significant energy savings. But what happens when these filters reach the end of their service life?

    Why Used Filters Pose a Problem

    Used filters aren’t your typical household waste. After all, the filter collects all of the contamination that needs to be removed from the airstream and can often contain potentially harmful or hazardous residues.

    Improper disposal isn’t just a health risk, it’s also a regulatory obligation.

    As such, the business or individuals that are generating this waste must take responsibility to ensure that disposal is carried out safely, and this carries with it an obligation to ensure that the waste is passed to someone that is authorised to accept it.

    This is where Westbury can assist. As part of our comprehensive range of site services, Westbury are licensed by the Environment Agency as a waste carrier and broker – which enables us to take care of responsible and safe filter waste disposal on your behalf.

    How the Process Works

    Collection – Used filters are gathered at the source by a dedicated team.

    Transportation – They are transported under regulations governing controlled waste, by certified handlers, under license.

    Sorting and Processing – Filters are sorted by type and dismantled if needed, to allow recovery of any recyclable materials.

    Eco-Friendly Disposal – Non-recyclable materials are sent to licensed waste-to-energy plants, whereas recyclable elements are sorted for further processing and re-use. Wherever possible landfill is avoided.

    Regulatory compliance is confirmed – Once the process is complete, a documentation trail is issued to the generator of the waste to prove the process has been completed correctly and so that records can be kept for auditing purposes.

    The Benefits

    Using a filter waste collection service helps:

    Support regulatory compliance for businesses.

    Reduce landfill waste by diverting toxic and bulky items.

    Prevent pollution of water and soil from contamination.

    Promote recycling of valuable materials like metals and contribute to the circular economy.

    What to Look for in a Filter Waste Collection Provider

    When choosing a service, consider the following:

    • Licensing and certification – Are they compliant with local environmental regulations? Westbury are a certified & licensed upper tier waste carrier, broker and dealer.
    • Recycling practices – Do they recover materials responsibly? Waste filters collected by Westbury are responsibly passed for appropriate processing, avoiding landfill.
    • Reporting and documentation – Can they provide waste tracking for compliance? Westbury provide official paper-trails for all filter waste collections.
    • Service scope – Do they handle your specific filter types? Bear in mind that some filters can contain hazardous contamination – which must be assessed and disposed of appropriately.

    Want to learn more or schedule a pickup? Contact Westbury and take a step toward cleaner, greener practices today.

    Tel. 01282 459744

    sales@westbury.group



  4. Scope 3 emissions reduction & Energy-Saving Filters: A Competitive Advantage for Facilities Management Companies

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    In today’s sustainability-driven market, facilities management (FM) companies are under increasing pressure to deliver measurable environmental impact reductions. While Scope 1 and 2 emissions are often addressed through direct measures, Scope 3 emissions — those generated across the value chain — present greater challenges. However, more and more FM companies are also recognising the opportunities in this area. One of the most practical and profitable ways FM companies can reduce Scope 3 emissions is by integrating energy-saving filters into their HVAC maintenance and upgrade offerings. This simple switch can unlock significant value for both clients and FM providers alike.

    Why Scope 3 Emissions Matter to FM Providers

    Scope 3 emissions include indirect emissions from:

    • The production and transport of equipment and materials
    • Energy use by tenants and building occupants
    • Waste and end-of-life treatment of assets

    For FM companies, reducing these emissions can:

    • Strengthen & showcase their Environmental, Social, and Governance (ESG) credentials
    • Differentiate their service offerings
    • Attract sustainability-conscious clients
    • Improve long-term contract value

    The Business Case for Energy-Saving Filters

    Energy-saving filters are designed to reduce resistance to airflow in ventilation systems, lowering energy consumption without compromising air quality. These measures can benefit FM companies directly:

    1. Lower Client Energy Bills = Higher Client Satisfaction

    By reducing HVAC energy, energy-saving filters help clients cut costs — making your service more valuable and increasing client retention. The savings can often be significant – in the range of 20-50%.

    2. Boost Your ESG Offering

    Offering energy-saving filters as part of your standard maintenance package positions your company as a sustainability leader. This can be a key differentiator in competitive environments, especially for clients with net-zero targets.

    3. Reduce Maintenance Costs and Downtime

    In addition to extended filter service life, these filters help HVAC systems run more efficiently and with less wear & tear, reducing breakdowns and extending equipment life. That means fewer pre-planned maintenance visits, fewer callouts and more predictable maintenance schedules.

    4. Quantifiable Scope 3 Reductions

    By tracking the emissions avoided through reduced energy use and extended equipment lifespan, FM companies can report tangible Scope 3 reductions — adding value to sustainability reporting for both you and your clients. Westbury have unique tools and experience to guide you through the process and provide quantitative data to complement your qualitative objectives — a key facet of any robust environmental policy.

    5. Upselling Opportunities

    Energy-saving filters open the door to broader energy efficiency conversations and associated upgrades—like smart HVAC controls, predictive maintenance, and IAQ monitoring — creating or developing new revenue streams.

    In Summary

    For facilities management companies, energy-saving filters are more than a “green” upgrade — they can be a strategic asset. They reduce Scope 3 emissions, enhance service value, and strengthen your competitive position in a market that increasingly values sustainability and rewards those looking to embed sustainability initiatives in their business model.

    Want to learn more or schedule a meeting to discuss further? Contact Westbury and take a step toward achieving your sustainability goals today.

    Tel. 01282 459744

    sales@westbury.group



  5. Energy-efficient air filtration from Westbury, Powered by Deltrian

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    INTRODUCING THE RPV ESN AIR FILTER

    A+ ENERGY RATING. ULTRA-LOW RESISTANCE. UNCOMPROMISING PERFORMANCE.


    The RPV ESN is the most energy-efficient compact rigid filter available on the market today. Designed in conjunction with Deltrian and engineered with cutting-edge nanofibre media, it delivers outstanding air quality whilst dramatically reducing the energy costs associated with running your HVAC system.


    WHY CHOOSE THE RPV ESN?


    Class A+ Energy Rating: The RPV ESN sets a new global benchmark for energy efficiency — directly reducing your carbon footprint & costs.

    Ultra-Low Resistance: Lower resistance to airflow means your fans work less hard, consuming less energy from day one. The result is sustained energy efficiency throughout the filter’s operational life.

    Superior Filtration: Certified to ISO 16890:2016 (ePM1 60% & ePM1 80%) & independently Eurovent tested, the RPV ESN captures the finest PM1 particulate matter – protecting occupants, equipment & processes to the highest standard.

    Sustainable by Design: The filter frame is constructed from 96% recycled materials & the PFAS-free nanofibre media reflects our commitment to environmental responsibility without performance compromise.

    Built for Demanding Environments: Inert to microbial growth (ISO 846/VDI 6022) – Food contact compliant (EC1935/2004) – Maximum operating temperature: 80°C – Maximum operating relative humidity: 100%.


    To find out how the RPV ESN can deliver cost savings, reduce your carbon footprint and improve
    air quality across your facilities, contact Westbury today.


    💻 www.westbury.group/contact
    ☎️ T. 01282 459744



  6. Westbury moving forward with carbon reduction plans

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    We’re proud to be taking meaningful steps on our carbon reduction journey and have achieved @Neutral Carbon Zone’s Blue Award! This demonstrates that the carbon emissions generated by our business activities have been modelled across specific parameters, and will form part of the development of our future carbon reduction strategies.


    Our market-leading products are already delivering carbon emissions reductions for our clients, and now we can also verify our own progress in reducing our impacts.


    Contact us today to discuss how Westbury can help you to achieve your sustainability goals.
    💻 www.westbury.group/contact
    ☎️ T. 01282 459744



  7. Westbury recognised for sustainability credentials & product innovation

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    SME News Magazine has revealed Westbury Filtermation as the winner of its “Most Innovative Sustainable HVAC Solutions Manufacturer” in the 2026 British Made Awards programme.

    As one of the longest standing independent filter manufacturing businesses in the UK, Westbury have a proud tradition in innovation at the cutting-edge of air filtration. Our recent partnership with Deltrian now brings further opportunities to collaborate with our new colleagues across Europe in this regard, and is already bearing fruit. The introduction of Deltrian’s RPV98 ESN filter is a genuine game-changer in our industry – offering enhanced air filtration efficiency and best-in-class pressure drop. Our introduction of this product to the UK market will allow our clients to enjoy air cleanliness and energy efficiency that no competitor can match.

    Following on from Westbury’s success in the 2023, 2024 & 2025 Northern Enterprise awards, we are delighted that our commitment has been recognised by SME News magazine once again, with the recent announcement of the winners of the 2026 British Made awards.

    The producers, manufacturers, and creatives in this programme all help to elevate their respective industries by continuously expanding their reach and skill sets, which ultimately helps the UK market to flourish year upon year. The British Made Awards 2026 are valuable, varied, and packed with motivational and inspirational success stories, spanning a myriad of industries and sectors. This programme truly showcases the power of the UK’s corporate landscape as our winners work tirelessly to bring innovation to their clients, customers, products, and services.

    To learn more about the award winners and to gain insight into the working practices of the “best of the best”, please visit the SME News website (https://smenews.digital/winners/westbury-filtermation-3/) where you can access this year’s winners supplement.



  8. Westbury joins the Deltrian family!

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    It’s official! Westbury has formally joined the Deltrian family, cementing a partnership which promises exciting benefits for our business as well as our customers. Based in Belgium, Deltrian now operates 18 subsidiaries worldwide, with a strong and growing position as a leading European air filtration group.

    From its foundation in 1967 to today, Deltrian continues to grow. Not just in size, but in expertise, innovation, and commitment to excellence.

    The partnership sees Westbury become part of a formidable force in the filtration market with a presence that spans across Belgium, France, Sweden, Lithuania, Slovakia, Germany, Italy, Spain, Switzerland, the Netherlands, Norway, Denmark, Morocco, the USA, China, and the United Kingdom.

    The expansion of the Deltrian group reflects our shared ambition to serve customers worldwide while maintaining the personal touch and technical expertise that define each of our local teams. The move brings together two companies that share the same DNA:
     
    → deep industry expertise,
    → respect for people,
    → and a commitment to quality and innovation.

    This milestone agreement positions Westbury to compete at the highest level in the UK filtration market while exploring new opportunities in power generation, automotive, offshore, and pharmaceutical sectors. Together, we’re building something stronger—combining Westbury’s deep UK roots with Deltrian’s pan-European reach and resources.

    Westbury is proud to become part of Deltrian’s successful team and we can’t wait to see what the future brings!

    To discuss the benefits our exciting news will bring to you, you can contact us today:

    Tel. 01282 459744

    sales@westbury.group

  9. Westbury at Christmas 2025

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    Not long to wait now until Santa arrives! Have you been naughty or nice this year?!

    Our team will be taking a well deserved break during the festive period between 24th December and 5th January.

    Want to get your last minute filter orders in before Christmas? Contact Westbury today.

    Tel. 01282 459744

    sales@westbury.group