1. Applications:

Pre-filters are used in HVAC systems, ventilation units, clean rooms, factories, and hospitals to capture large particles such as dust, hair, fibers, and pollen. They serve as the first stage of air filtration, protecting higher-efficiency filters (fine and HEPA filters), and helping to extend the lifespan of the overall filtration system.

2. Key Features:

• Color: White, grey, blue (or as requested by customers).

• Type: Flat panel, pleated type, aluminum frame, cardboard frame, or primary filter bags.

• Material: Synthetic fibers, non-woven fabric, filter cotton – high durability and easy replacement.

• Filtration Efficiency: From G2 to G4 (EN779 standard), equivalent to 35% – 60%.

• Size: Customizable upon request.

• Operating Temperature: Maximum 80°C.

• Frame: Plastic, aluminum, galvanized steel, or rigid cardboard.

3. Advantages:

• Low cost, easy to replace and maintain.

• Protects downstream filters, prolonging the life of fine and HEPA filters.

• High airflow with low resistance.

• Easy to clean or replace periodically.

• Some types can be reused depending on material.