Tag: AHU
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Filters in Air Handling Units & Recommended Final Pressure Drop acc.to EN 13053
In trying to improve indoor air quality (IAQ), air handling units (AHUs) with advanced filters are very important. These systems are crucial for maintaining the purity of air in residential, commercial, and industrial spaces. This article explores the recommended filtration stages and practices for air handling units to achieve the best air quality and save…
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Filter Bypass in AHUs and Filter Cabinets and How to Prevent It
Air Handling Units (AHUs) and filter cabinets are essential components of modern Heating, Ventilation, and Air Conditioning (HVAC) systems. They ensure that the air circulating within buildings is clean, fresh, and comfortable for occupants. However, one common issue that can compromise the efficiency of these systems is filter bypass. Below is what bypass costs you,…
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Guidelines for Changing G4, G3, and F Series Bag Filters in Air Handling Units (AHUs)
Bag filters in an air handling unit are changed, not cleaned. Washing or blowing them out damages the fibres, and the filter never returns to its rated efficiency however clean it looks afterwards. This post is the procedure for changing G3, G4 and F series bags safely, from the protective equipment through to seating the…
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Dust Holding Capacity in Air Filters
Dust holding capacity (DHC) is a critical attribute of air filters that determines their overall performance and operational life. The ability of an air filter to retain particulate matter significantly affects the quality of indoor and outdoor air, as well as energy consumption in ventilation systems. Below is what DHC measures, why it drives filter…
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How to Properly Install an Air Filter in Your AHU
Most filter installation faults come down to two things. Either the element is not seated properly against its frame, or someone has handled the pleat pack with their hands. Both cost efficiency immediately and neither shows up on a datasheet. This post is the installation sequence for a filter in an air handling unit, and…
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How Often Should You Replace Your Air Filters
Air filters play a crucial role in maintaining the quality of indoor air, ensuring the health and comfort of occupants in a building, and supporting the efficiency of air handling units (AHUs) and industrial applications. An air filter’s primary function is to trap and remove contaminants, such as dust, pollen, and other particulates, from the…
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Optimizing HVAC Systems and AHUs: A Guide to Filter Selection
Eurovent 4/23 gives two ways to pick an ISO 16890 filter class for a building. You either start from the outdoor air quality at the site and work forward, or you start from the supply air quality you want indoors and work backward. The two routes do not always land on the same filter. This…
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The MERV Rating System: What You Need to Know
MERV runs from 1 to 16 and is the North American way of rating a general ventilation filter. Each band corresponds to a particle size range the filter is expected to hold back, from coarse dust at the bottom of the scale to bacteria carriers and smoke at the top. This post covers what each…