A medium efficiency filter is a type of air or liquid filter that is designed to remove a moderate level of particulate contaminants from a fluid stream. These filters are typically used in applications where a higher level of filtration efficiency is required compared to primary filters, but not as high as what is achieved with high-efficiency filters.
Medium efficiency filters are commonly categorized based on their ability to capture and retain particles of specific sizes, typically expressed in micrometers (μm) or microns. The specific efficiency rating of a medium efficiency filter will depend on the industry standards or classification systems used. For example, in the HVAC (Heating, Ventilation, and Air Conditioning) industry, medium efficiency filters are often rated using the MERV (Minimum Efficiency Reporting Value) system, which ranges from MERV 1 to MERV 16.Medium efficiency filters are available in various configurations, such as panel filters, pleated filters, bag filters, or cartridge filters, depending on the application and system requirements. They are commonly made of materials such as fiberglass, synthetic fibers, or a combination of both.

These filters are effective in capturing a range of particulate matter, including dust, pollen, mold spores, pet dander, and larger airborne particles. They are commonly used in applications such as residential and commercial HVAC systems, cleanrooms, industrial processes, and air purifiers.
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The primary filter, also known as a pre-filter or coarse filter, is the initial stage of a filtration system designed to remove larger particles and contaminants from a fluid or air stream. Its primary function is to capture and prevent the entry of larger particles, such as dust, dirt, debris, and hair, before they reach the main filter or the critical components of the system.

The primary filter is typically made of a coarse and porous material, such as foam, fiberglass, or non-woven synthetic media. It is designed to have a higher flow capacity and lower filtration efficiency compared to the main filter. This allows it to handle larger volumes of particulate matter without clogging quickly.
By capturing larger particles, the primary filter helps to extend the lifespan and improve the performance of the subsequent filters in the system. It plays a crucial role in preventing the main filter from becoming overloaded or prematurely clogged, which can lead to reduced airflow, decreased system efficiency, and increased maintenance requirements.
The primary filter is commonly used in various applications, including HVAC systems, air purifiers, automotive engines, industrial processes, and more. Regular inspection, cleaning, or replacement of the primary filter is necessary to ensure its effectiveness and maintain the overall efficiency of the filtration system.What is the price of primary filter?The price of a primary filter can vary significantly depending on va

Air Cleaners and Air Filters in the HomeThe most effective ways to improve your indoor air are to reduce or remove the sources of pollutants and to ventilate with clean outdoor air. In addition, research shows that filtration can be an effective supplement to source control and ventilation. Using a portable air cleaner and/or upgrading the air filter in your furnace or central heating, ventilation, and air-conditioning (HVAC) system can help to improve indoor air quality. Portable air cleaners, also known as air purifiers or air sanitizers, are designed to filter the air in a single room or area. Central furnace or HVAC filters are designed to filter air throughout a home. Portable air cleaners and HVAC filters can reduce indoor air pollution; however, they cannot remove all pollutants from the air.The following publications provide information on portable air cleaners and on HVAC and furnace filters commonly used in homes.Guide to Air Cleaners in the Home2nd edition, August 2018Portable Air Cleaners, Furnace and HVAC Filters

The short consumer guide covers portable air cleaners and furnace or HVAC filters used in a home. It includes tips for selecting a portable air cleaner, furnace filter, or HVAC filter.

For an overview of the Guide to Air Cleaners in the Home:View the technical assistance webinar Dealing with Dust in the Wind: EPA Guidance for Consumers About Air Cleaners presented by Terry Brennan (Camroden Associates) and Lew Harriman (Mason-Grant Cons

Eco-friendly modular filter for efficient AMC control and reduced carbon impact in semiconductor plantsIn the process of going smart, many semiconductor factories are beginning to discover that there are micro-contaminants in the environment that are invisible to the naked eye, which are suspended in the air and cause great harm to products, but traditional filtration methods such as HEPA or ULPA are difficult to remove effectively. It is therefore imperative that intelligent control mechanisms are put in place within the plant to address the AMC (Airborne Molecular Contamination) problem.
According to Pratt & Whitney technical expert, with the development of advanced semiconductor processes, dust suspended in the air can be effectively controlled through traditional filtration methods. However, other micro-contaminants, organic or inorganic, have a much greater impact on process yields than dust. In other words, high performance AMC micro-pollution control technology is one of the key elements in the development of 5nm advanced processes by major semiconductor manufacturers.

AMC is mainly divided into MA acidic substances, MB salty substances, MC condensation substances and MD doping substances, and H₂O₂、O₃ and other unclassifiable substances. These gaseous molecular contaminants, in terms of size, only need 5~25 molecular deposits to fill up the 5nm line width and cause damage to the wafer, which is the biggest problem faced by the semiconductor industry at

Cleaning Methods for High-efficiency Filters1.According to the manual, take off the high efficiency filters screen, and when removing it, be careful not to touch the metal part of the indoor unit to prevent it from being scratched.2.When the dust on the filter is too much, it can be washed with water or soft brush dipped in neutral detergent, but the water temperature should not exceed 45℃, and no washing powder, detergent, gasoline or banana water should be used to avoid deforming the filter. In addition, do not use sponge to clean, otherwise it will damage the surface of the high efficiency filter.3. Clean the high-efficiency filter with water and dry it with a soft cloth or put it in a cool place to dry, never dry it in the sun or in an open fire, so as not to deform the high-efficiency filter.4. When cleaning the high efficiency filter panel, use a soft cloth dipped in warm water or neutral detergent to gently wipe, and then dry with a dry soft cloth.
The cleaning of the high efficiency filters can not only improve the performance of the air conditioner, but also the air we breathe will be cleaner after going out the bacteria and dust.