G4 Compact Style Primary Filter

G4 Compact Style Primary Filter: Product Introduction

As the first-line barrier of air purification systems, the G4 Compact Style Primary Filter is engineered with EN779 standard G4-grade efficiency and space-saving design. It specializes in capturing large particulate contaminants while fitting into limited installation spaces, serving as a critical pre-filtration component for HVAC systems, cleanrooms, and industrial equipment.

I. Core Function: Protect Downstream Systems with Efficient Pre-Filtration

The primary mission of this filter is to intercept large-diameter pollutants at the source, reducing the load on subsequent medium/high-efficiency filters and extending the overall system lifespan. Its key functions include:

High-Efficiency Particulate Capture: Targets particles ≥5μm (such as hair, lint, visible dust, and sand particles) with a weight-based filtration efficiency of 80%-90% , preventing these contaminants from entering downstream equipment.

System Protection: Acts as a "guardian" for precision filters (e.g., F7, H10) and HVAC components. By removing large particles first, it avoids premature clogging of high-cost fine filters, extending their service life by 70%-80% when paired with proper filter area design .

Airflow Resistance Control: Maintains low initial resistance (typically ≤50Pa) to ensure stable airflow in the system, avoiding excessive energy consumption caused by high resistance .

II. Technical Specifications & Compact Design Advantages

1.Compact Design Highlights

The "compact style" is tailored for space-constrained environments, with design optimizations that do not compromise performance:

Slim Profile: Thickness reduced by 30%-40% compared to standard G4 filters, fitting seamlessly into narrow HVAC cavities, communication base stations, and wind shower rooms .

High Filter Area Ratio: Adopts folded filter media design, ensuring the effective filter area is 3-5 times the windward area—maximizing dust-holding capacity while minimizing overall size .

Tool-Free Installation: Equipped with snap-on frames for quick replacement (completed in 1-2 minutes), ideal for equipment with limited maintenance space.

III. Typical Application Scenarios

Leveraging its balance of compact size and reliable pre-filtration, this filter is widely used in:

HVAC & Comfort Air Conditioning: Serves as the first-stage filter in commercial buildings, shopping malls, and residential air systems, protecting F5-F7 medium-efficiency filters .

Industrial Cleanrooms: Integrated into 100,000-300,000 class cleanroom pre-filtration sections (e.g., pharmaceutical, electronics factories), paired with F7-F9 filters for graded purification .

Harsh Environment Equipment: Installed in desert-area communication base stations and outdoor cabinets to block sand and dust, ensuring stable operation of internal cooling systems .

Specialty Equipment: Used in wind shower rooms to remove large particles from personnel clothing, and in air compressors to pre-filter inlet air .

IV. Maintenance & Longevity Tips

Replacement Criterion: Replace when the pressure difference reaches 150-200Pa (monitored via a differential pressure gauge) or every 3-6 months under normal conditions .

Cleanability: Non-woven fabric models can be washed with neutral detergent and high-temperature steam sterilized (suitable for G4-grade 粗纤维 media), extending service life by 2-3 cycles .

Storage Note: Store in a dry, dust-free environment to avoid media moisture and contamination before installation.

V. Core Value Summary

The G4 Compact Style Primary Filter redefines pre-filtration efficiency in space-limited scenarios. It not only reduces system energy consumption by controlling resistance but also cuts maintenance costs by protecting downstream filters—making it a cost-effective and reliable choice for HVAC, industrial, and specialty equipment air purification systems.