8/31/2023 0 Comments Laminar flow hood filtersThat falls between the filtration methods and this weak spot is knownĪs the MPPS. This all sounds great, and it is, however there is a size of particle This type of filtration is called 'diffusion'. Molecules so they move in random patterns which results in them bouncingĪround and hitting the fibers of the HEPA filter and getting stuck. Straight lines with the flow of air, they rebound when they hit gas TheseĪre very small and have such little mass that they don't travel in Have the smallest particles which are generally below 0.3 microns. This type of filtration is called 'interception'. Smaller particles that can pass through the fibres, the larger ones willįollow the flow of air but will be too heavy therefore too slow to passĪll of the way through the panel so will drop out of the airflow and beĬaptured. 'straining' and is generally for particles of around 10 microns. Particles fly into a HEPA filter but they are too big to get through They capture the different sizes in different ways. So they are Top Down filters, they capture bigĬapture both big particles and small particles and they can do this as Will capture particles to a certain size and anything smaller will, in Such as pleated panels or Procart extraction filters as these filters That is used with HEPA filters but not with many other types of filter What is MPPS and why haven't I heard this term before? MPPS is a term That people start scratching their heads and looking a little confused, The MPPS (Most Penetrating Particle Size). Minimum of 99.97% of dust, pollen, bacteria, mold and any other types ofĪirborne particle with a size of 0.3 micron which is generally known as HEPA (High Efficiency Particulate Air) filter can remove a Each roll of HEPA filter media is individually tested and certified. Every HEPA is issued with a unique serial number which allows full traceability right back to the filter media Batch and Roll. We can also test and certify to EN1822 if required. Again, just ask us for current stock levels.įurther information can be seen in the Technical Information section below and in our Knowledge Hub where you can learn a little about mycology & fungiculture.Įach filter Grade H13 and above is individually leak tested and certificates are issued. Please note that we do not keep multiple sizes in stock to ensure optimum air efficiency so there may occasionally be a wait time. We can manufacture many sizes that are not available on the website so just contact us to enquire about availability if you are after a different size. Laminar Flow HEPA differ from our Turbulent Flow HEPA as they have a narrower profile so allow a smoother flow of air but have a lower air flow rate. HEPA filters are suitable for the pharmaceutical, food and electronic industries as well as medical and healthcare environments as they are designed to trap the smallest particles of dust and spores but also bacteria so they are ideal for clean rooms, neonatal incubators, medical laboratories and many more areas that require high quality, clean air. These Laminar Flow HEPA panel filters are used for absolute air filtration in controlled contamination environments and many types of clean room area.ĭesigned for the highest efficiency of air filtration the panels allow air to pass through micro-fine glass fibres, that form a paper-like surface, that traps impurities and removes them from the air circulation.
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