In industries where air quality is critical — medicine, pharmaceuticals, biotechnology, microelectronics — standard filtration is not enough. Final air purification to high cleanliness classes is required. This is exactly the task for wall-mounted high-efficiency filters with pleated filter panels.
Purpose and areas of application
Final purification filters are used as the final stage of air treatment in ventilation and air conditioning systems. They effectively remove the finest suspended particles, ensuring required cleanliness classes.
Main areas of application:
- Medical institutions — operating rooms, intensive care units, sterile blocks
- Pharmaceutical production — cleanrooms, laboratories
- Biotechnological laboratories
- Microelectronics industry
- Food production
- Other air-quality-sensitive manufacturing facilities
Key features of filters with pleated panels
Modern final purification filters feature a well-thought-out design that ensures efficiency, ease of maintenance, and reliability:
1. Pleated structure of the filter material
Pleated (corrugated) filter panels increase the working filtration area several times compared to flat counterparts. This provides:
- Higher dust holding capacity
- Lower aerodynamic resistance
- Extended service life between replacements
2. Special locking frame
The design with a locking frame allows a single technician to replace the filter quickly, safely, and without breaking the system’s airtightness. This is critical for cleanrooms, where every minute of downtime is costly.
3. Precise fit of filter elements
The housing with guide protrusions ensures accurate positioning of the filters, preventing unfiltered air from bypassing through gaps. Tightness is a key requirement for high-efficiency systems.
4. Built-in control points
Modern filters are equipped with a design for:
- Pressure drop measurement — monitoring the degree of filter contamination
- Seal tightness testing — verifying system integrity
- Test particle measurement — verification of filtration efficiency
How to choose the right equipment
When selecting final purification filters, several parameters must be considered:
Room cleanliness class
Determine the required cleanliness class according to ISO 14644-1. For classes 5–8, high-efficiency filters with pleated panels are suitable. The higher the class (lower number), the stricter the filtration requirements.
Thickness of the filter element frame
Different designs are intended for filters with different frame thicknesses (typically 50, 100, 150 mm). Thicker filters have greater dust holding capacity but require more installation space.
Airflow and dimensions
Select the filter size according to the performance of your ventilation system and the available installation space.
Compliance with standards
Ensure the equipment complies with:
- ISO 14644-1 — cleanroom standards
- VDI 6022 — hygienic requirements for ventilation systems
Filter element material
Different materials are used for different tasks: fiberglass, synthetic materials, HEPA/ULPA filters. The choice depends on the type of particles to be removed and the operating conditions.
Professional equipment selection
Proper selection of final purification filters is a task for specialists who take into account all system parameters — from the room cleanliness class to the characteristics of the existing ventilation. An error in selection can lead to insufficient filtration efficiency or excessive maintenance costs.
The company Tims Klimatechnik offers professional consulting, design, and supply of filtration equipment from leading global manufacturers: Trox, Gunt, Korf, Lucas-Nuelle, Phywe.
We will select the optimal solution for your facility, provide delivery of certified equipment, and offer technical support at all stages — from design to commissioning.