Definition and Characteristics
Definition: The liquid slot high-efficiency air filter employs a liquid slot sealing structure to tightly integrate high-efficiency filter material with the frame, forming a sealed filtration unit. This design not only enhances filtration efficiency but also strengthens the sealability and stability of the filter.
Characteristics:

• High-efficiency filtration: Utilizes high-efficiency filter materials such as HEPA filter paper, capable of filtering out minute particles in the air, including bacteria, viruses, dust, etc.
• Liquid slot sealing: Features a unique liquid slot design that seals the filter material with the frame using sealing liquid (e.g., gel, jelly glue, etc.), preventing unfiltered air from bypassing the filter and ensuring filtration effectiveness.
• Excellent stability: The liquid slot sealing structure makes the filter less prone to deformation or loosening during use, enhancing its stability and service life.
• Wide range of applications: Extensively used in hospital operating rooms, pharmaceutical factories, electronic clean rooms, laboratories, and other places with extremely high requirements for air cleanliness.

Structure and Materials

• Structure: The liquid slot high-efficiency air filter mainly consists of filter material, partition (optional), outer frame, liquid slot, and sealing liquid. The filter material is fixed within the liquid slot and tightly sealed with the outer frame through the sealing liquid.

Materials:

• Filter material: Typically employs high-efficiency filter materials such as glass fiber filter paper, polytetrafluoroethylene (PTFE) coated filter paper, etc.
• Outer frame: Mostly made of metal materials like aluminum alloy, stainless steel, etc., with good strength and corrosion resistance.
• Liquid slot: Generally made of plastic or rubber materials, with excellent sealability and corrosion resistance.
• Sealing liquid: Commonly used materials include gel, jelly glue, etc., providing good sealing effect and stability.

Working Principle
The working principle of the liquid slot high-efficiency air filter is similar to that of a regular high-efficiency air filter, both involving the interception and adsorption of airborne particles by the filter material. The difference lies in the liquid slot sealing structure of the liquid slot high-efficiency air filter, which further enhances the filter's sealability and filtration efficiency. When air passes through the filter, it first goes through a pre-filter layer (if present) and then enters the high-efficiency filter layer. In the high-efficiency filter layer, airborne particles are intercepted by the filter material and adsorbed onto its surface. Simultaneously, the sealing liquid in the liquid slot ensures that unfiltered air cannot bypass the filter, thereby guaranteeing filtration effectiveness.

Market and Applications

• Market Situation: With the increasing demand for air purification, the market demand for liquid slot high-efficiency air filters is also continuously growing. There are multiple manufacturers producing liquid slot high-efficiency air filters in the market, offering a wide range of products at different prices.
• Application Areas: Liquid slot high-efficiency air filters are widely used in hospital operating rooms, pharmaceutical factories, electronic clean rooms, laboratories, and other places with extremely high requirements for air cleanliness. In these settings, liquid slot high-efficiency air filters can effectively remove minute particles and harmful microorganisms from the air, providing a safe and clean working environment for staff.