Working Principle

The working principle of the high efficiency filter without partition mainly relies on the physical interception and adsorption of airborne particles by the filter material, while the structural design of the filter, such as the V-shaped channel, is utilized to enhance the filtration efficiency and dust holding capacity. These filters usually use ultra-fine glass fibers or other high-performance materials as the filter element and substances such as hot melt adhesive as the separator to achieve high filtration efficiency.

Features

• High filtration efficiency: it can effectively filter particles above 0.3μm, and the filtration efficiency can reach over 99.97%.

• Small size and light weight: compact design, easy to install and transport.

• Low running cost: low resistance design, reduce energy consumption.

• Environmentally friendly: easy to recycle, in line with environmental requirements.

• Application Fields

  Due to their excellent filtration performance, high efficiency filters without compartments are commonly used in electronics, medicine, food, semiconductor, optical, hospitals and other industries that require extremely high cleanliness. They are mainly used for terminal filtration in these fields to ensure that airborne particles, microorganisms and other contaminants are effectively filtered, so as to maintain a clean production or working environment.

• Installation and Maintenance

  Correct installation of partitionless HEPA filters is the basis for ensuring their performance. When installing the filter, you need to pay attention to the direction of the filter to ensure that the airflow is smooth and connected to the system through the correct interface. In terms of maintenance, it is necessary to check the use of the filter on a regular basis, and replace the filter material in a timely manner once an increase in resistance or a decrease in filtration effect is detected. At the same time, it is also necessary to keep clean around the filter to prevent contamination.

• Design Characteristics

  Separatorless high efficiency filter is a kind of end filter of filtration system designed for filtering air suspended particles above 0.3um. The filter is made of ultra-fine glass fiber media with hot melt adhesive as the separator, which effectively reduces operating costs. The spacerless design of the thermoplastic spacer ensures consistent pleat spacing to maintain optimal airflow through the filter, achieving a high dust holding capacity and fully utilizing the filter media throughout the entire depth of the filter. In addition, the outer frame is usually made of anodized aluminum alloy or other durable materials to ensure strength and corrosion resistance. The filter is sealed around the perimeter with a special sealant to ensure an overall airtight seal. In order to protect the filter paper from damage, the inlet and outlet air surfaces are often fitted with plastic-sprayed protective mesh. Each filter will undergo rigorous testing to ensure that the performance is up to standard. The filtration efficiency grade is usually H13, H14 (EN1822 standard).

• Material and Characteristics

  The filter media is usually made of ultra-fine glass fiber filter paper or synthetic fiber filter paper, and the outer frame may be made of aluminum alloy profile, stainless steel frame, plastic frame or paper frame. The separator is mainly hot melt adhesive, while the sealant may be two-component AB adhesive or foamed EVA.The characteristics of the high efficiency filter without separator are small size, large filtering area, stable efficiency and uniform air velocity.

• Technical Parameters

  The technical parameters of high efficiency filter without partition include but are not limited to filtration efficiency, air volume, temperature and humidity resistance, instantaneous temperature resistance and so on. For example,过滤效率可能达到99.99%@0.3μm, the air volume can range from several hundred cubic meters per hour to several thousand cubic meters per hour, the humidity resistance is usually no more than 80% RH, and the temperature resistance can reach 80℃. Some products also have special protection levels, such as H13-H14 levels, which can meet the needs of use in different environments.