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Deiiang Medium Filters are used in commercial HVAC systems, as well as in cleanrooms that require more than basic prefiltration prior to the HEPA filtration. These filters are designed to remove moderate size particles including dust, pollen, fibers, and process dust.
Standardized Medium Depth pleated, bag, box, and V-bank filter designs in many common sizes and MERV 8-13 / F5-F9 grades are available for HVAC Contractors and HVAC OEMs, allowing for simple selection, energy control and even better fleet average.
Our professional team delivers one-stop, customized medium filter solutions to match your systems, media, and performance requirements.
Deiiang Medium Filters are engineered for commercial and industrial HVAC and cleanroom systems, providing stable efficiency between primary and HEPA stages.
Medium Filters run steadily at F5–F9 / MERV 8–13 level and catch fine dust so that the pre-filters and the downstream HEPA filters are not loaded unnecessarily. Thus Medium Filters offer a constant level of air cleaning.
Tuning media and frame cutouts to reduce airflow restriction allows for lower power of fans and consistent flow of air through rest of system.
Various styles such as pleated, bag, box and V-bank type filter builds all possess large filter area and can last longer. Thus, the frequency of replacement of air conditioning filter can be reduced.
The dimensions and efficiency of our products conform to the normal specification for air handling units and ductwork for new build or refurbishment projects.
The medium filter is robust in construction with a thickened sealing frame. The filter resists variations in ventilation system air flow and does not leak air, does not distort or shed fibers.
Supports customization of multiple parameters. From size and filtration accuracy to filter media and frame materials, Deiiang can tailor adjustments to meet specific customer needs. It can adapt to the different needs of cleanrooms and factory workshops in various industries.
Lots of jobs in the pharmaceutical, electronics and hospital area run for a long time. This as well as our satisfied customers prove the filter in real life.
All Deiiang medium filter batches have complete documentation, including performance testing and material specification documents, which facilitates verification and compliance audits for customer factories.
A pleated air filter is the typical medium filter you see in many HVAC systems. It looks like a flat panel with V‑shaped pleats, and is best for offices, malls, schools, and light‑duty industrial areas. This is our “everyday medium filter” used as an air HVAC filter. Medium efficiency bag filters (pocket filters) are often made up of many deep pockets, literally long “bags” or “pockets” suspended from a frame. This makes for an excellent heavy‑duty medium filter in cleanroom air handling units, hospitals and heavily polluted industrial processes, allowing for extended filter life and very high filter loading.
Overview: A pleated air filter is a typical medium filter used in many HVAC applications and is widely chosen as an everyday HVAC air filter.
Looks like: This model comes as a flat panel built with V-style pleats.
Best for: Offices, malls, schools, light‑duty industrial areas.
Strengths: It is small enough to store in a bag and has a good price/performance ratio, making it a good everyday medium filter for most general HVAC applications.
Overview: A medium efficiency bag filter (pocket filter) has several deep fabric pockets hanging down, forming multiple elongated bag sections.
Looks like: Composed of several elongated filter bag sections arranged in rows.
Best for: Air handling units for cleanrooms, hospitals and industrial plants with a lot of dust.
Strengths: Very high dust holding capacity, long service life and stable performance at high air volume, making it an extremely robust medium‑efficiency filter for long life at high load.
We install the medium filters in a bag or V-bank configuration ahead of the HEPA filter to protect the clean GMP environment. This prefilter configuration provides consistent control of indoor particle concentration preventing unscheduled change outs of the final filter.
HVAC medium efficiency filters(MERV 11–13) can help control bio-aerosols in Intensive Care Units (ICUs) and Operating Rooms while keeping fan energy cost within the hospital budget.
We provide V-bank medium filters and pleated panel filters for filtering the air that is supplied to FFU units.They are designed to provide the highest level of protection for sensitive items such as silicon wafers and very precise production equipment.
Box type medium filters are used to filter mixing, filling and packing areas for dust of flour and fibers, while allowing HVAC wash-down functions to operate as required.
Pleated and medium efficiency filters are used to recirculate the air in laboratories and research centers.These filters can trap dust and debris, thus preventing dirt from accumulating in small fans and narrow ducts and causing blockages.
Our medium efficiency bag filter guard molding and assembly cleanrooms by capturing plastic dust and lint, preventing premature blockage of downstream HEPA filters.
HVAC medium efficiency filter(s) control powder in mixing and filling areas to achieve satisfactory air quality as required by audits.
High-grade F7–F9 V-bank medium filters are supplied for the sterile corridors and isolation rooms to provide a stable pre-HEPA clean air supply. These filters are suitable for use in compliance with ISO and GMP requirements.
To start, simply select a manufacturing process and upload a 3D CAD file.
Within a few hours we'll send you design for manufacturability (DFM) analysis and real-time pricing.
Once you review your quote and place your order, we'll start the manufacturing process. We also offer finishing options.
Our digital manufacturing process allows us to produce parts in as fast as 1 day.
Deiiang is a professional supplier and manufacturer of cleanroom building materials, providing you with one-stop integrated solutions for cleanroom building materials.
Deiiang Medium Filter Quality Control Flowchart
Medium Filter acts as the middle filtration section in HVAC setups. designed to pick up medium size particles of dust, pollen, and even pet hair. A good price for good filtration. The Medium Filter is used as a pre-filter to your HEPA filter, in order to take as much of a load off of the fine filters as possible.
The rate at which a Medium Filter wears out is influenced by the amount of dust in the air and how many hours per day that the unit runs. Typically, Medium Filters last for 3 to 6 months before they need to be replaced. A clogged filter causes additional air resistance that is wasted in fan power and can also cause damage to your entire ventilation system.
There is no unified universal standard, and Deiiang supports customized sizes.To find the matching dimensions, you can directly look at the old filter, whose surface will be printed with markings for length, width, and thickness, which avoids errors caused by measurement.
HEPA filters have a 99.97% rejection rate for particles with a diameter of 0.3μm, while medium filters can only intercept larger particles of 1~5μm. Therefore, medium filters are suitable for general ventilation where cleanliness requirements are not high, while HEPA filters are the opposite.
Local hardware shops, building suppliers and online marketplaces all carry this product. Deiiang™ provides full-size Medium Filters that fit nearly all industrial and commercial HVAC machines, plus one-on-one model matching guidance.
How to Choose Medium Filters
Define the system and location
Decide where to place the Medium Filter first (Medium Filter is intended to be used in normal AHU’s in the mid-position of the airflow stream). The position of the Medium Filter will determine the size and depth of the filter as well as its form (pleated, bag, box or V-bank form).
Set the efficiency level (MERV / EN grade)
Choosing the best grade of air filter for your application.
General Commercial: MERV 8 – 11 / F5 – F7.
Medical, pharma and electronic facilities (use ahead of HEPA air cleaning): MERV 11–13 / F7–F9.
Check airflow and pressure drop limits
The fan has a specific air delivery capacity, so the airflow resistance of the medium-efficiency filter must match the fan's performance. Available options include pleated panel, bag, and V-bank filters; selecting the appropriate type helps prevent fan overload and insufficient airflow.
Consider dust load and service interval
Medium efficiency bag filters or V-bank medium filters are often used for applications where there is a large amount of dust present or where 24/7 operation is required. These types of filters have a large effective filter area and high dust holding capacity. Medium efficiency pleated air filters on the other hand are compact in design and are ideal for situations where space is a problem.
Confirm frame, media, and environment
Deiiang sorts pleated, bag and V-bank Medium Filter for preventing fan overload or loss of airflow.
