Air filtration plays a critical role in maintaining indoor air quality across HVAC systems, industrial environments, and commercial buildings. To ensure reliable performance, general air filters must be evaluated according to standardized testing methods and classification systems.
This article provides an overview of testing standards, filter classification, and test rig systems, helping manufacturers and laboratories select the right solutions for performance validation.
1. What Are General Air Filters?
General air filters are primarily used in HVAC and ventilation systems to remove airborne particles such as:
- Dust
- Pollen
- Fine particulate matter (PM10, PM2.5, PM1)
Unlike HEPA filters, general ventilation filters focus on real-world particle size distribution, making their testing standards more application-oriented.
2. Key Testing Standards for General Air Filters
2.1 ISO 16890
の ISO 16890 standard is currently the most widely adopted global standard for general ventilation filters.
主な特長:
- Classifies filters based on PM1, PM2.5, PM10効率
- Reflects real atmospheric dust conditions
- Replaces older standards like EN 779
分類システム:
- ePM1
- ePM2.5
- ePM10
- 粗い
👉 This standard provides a more realistic evaluation compared to traditional methods.
2.2 で 779 (レガシー標準)
で 779 was previously used in Europe, classifying filters as:
- G1 ～ G4 (粗いフィルター)
- F5～F9 (細かいフィルター)
Although now largely replaced by ISO 16890, it is still referenced in some markets and legacy systems.
3. Filter Classification Overview
Modern classification focuses on particle size efficiency, rather than only arrestance:
| 分類 | 粒径範囲 | 応用 |
|---|---|---|
| 粗い | >10 μm | 前濾過 |
| ePM10 | ≤10μm | Commercial HVAC |
| ePM2.5 | ≤2.5μm | Indoor air quality control |
| ePM1 | ≤1μm | High-performance ventilation |
This shift allows engineers to better match filters with real environmental requirements.
4. Test Methods and Key Parameters
To evaluate general air filters, several parameters are measured:
4.1 ろ過効率
- Based on particle size distribution
- Measured across multiple size ranges
4.2 圧力損失
- 通気抵抗を表します
- Directly impacts energy consumption
4.3 粉塵保持能力
- Determines service life
- Evaluated through loading tests
4.4 Discharge/Conditioning Process
- Required in ISO 16890
- 実際の動作条件をシミュレートします
5. Test Rig Systems for Air Filter Evaluation
A complete air filter test system typically includes:
- エアロゾル生成システム
- Particle measurement instruments
- エアフローコントロールシステム
- Dust feeding system
- データ収集ソフトウェア
These systems must provide:
✔ Stable airflow control
✔ Accurate particle measurement
✔ Repeatable test conditions
6. 推奨される解決策: SCPUR SC-16890 Test System
For laboratories and manufacturers seeking compliance with ISO 16890, の
SC-16890 一般換気フィルター試験システム from SCPUR is a highly reliable solution.
主な利点
- ISOに完全準拠 16890
- 正確なPM1 / PM2.5 / PM10効率測定
- Automated test procedures for improved consistency
- 安定した風量と粉塵付着制御
- User-friendly software for data analysis
代表的な用途
- HVAC filter manufacturers
- 第三者試験機関
- 研究機関
- Quality control departments
👉 The SC-16890 system ensures precise, repeatable, and standards-compliant testing, helping users improve product quality and meet international requirements.
7. Why Proper Testing Matters
Accurate testing of general air filters ensures:
- Compliance with international standards
- Improved indoor air quality
- Reduced energy consumption
- Better product competitiveness
メーカー向け, investing in advanced test systems is essential to remain competitive in the global market.
8. 結論
With the adoption of ISO 16890, general air filter testing has shifted toward more realistic, particle-based evaluation methods.
Understanding testing standards, 分類システム, and selecting the right test rig—such as the SC-16890—are critical steps in ensuring reliable filter performance and market compliance.
