Product Details
1. Product Introduction
The washable bag-type initial efficiency filter developed and produced by Shenzhen Mingyang Purification Technology Co., Ltd. is a cost-effective filtration product specifically designed for industrial purification and central air conditioning systems, positioned for dual scenarios of 'medium efficiency filter front-end pre-treatment + general ventilation primary filtration'. The product uses a density gradient synthetic fiber filter material combined with a high-strength aluminum alloy frame, employing air pressure adsorption as the filtration principle, effectively intercepting dust particles ≥5μm in the air, with a weight-based filtration efficiency reaching G3/G4 level. It features four core advantages: washable, large airflow, high dust holding capacity, and low resistance, significantly reducing consumable replacement costs and extending the service life of downstream filtration equipment, making it an ideal choice for industries such as electronics, food, pharmaceuticals, and hospitals that have basic air cleanliness requirements. It also supports non-standard specifications customization to fully match different airflow and installation needs.
2. Core product features
- 2.1 Washable design reduces operating costs: The filter material is made of strong, water-resistant synthetic fibers, allowing for multiple rinses with clean water or compressed air. After cleaning, the filtration efficiency remains stable, and with normal maintenance, it can be reused 3-5 times. Compared to disposable filters, this can reduce the frequency of material replacement by over 70%, significantly lowering long-term operating costs.
- 2.2 High-efficiency filtration structure with better wind resistance: The bag-type folding structure has an effective filtration area 3-5 times that of traditional panel filters, with initial resistance only 25-35Pa under the same airflow conditions, resulting in lower energy consumption during operation; the filter material features a density gradient design that can layer intercept different particle sizes of dust, with dust holding capacity far exceeding that of ordinary filter materials, extending service life by 50%.
- 2.3 Seamless fusion technology for a stable structure: Using advanced seamless fusion technology, the filter material is tightly bonded to the outer frame, ensuring strong airtightness. In high wind pressure environments (≤1000Pa), there will be no leakage, rupture, or detachment of the filter material, making it suitable for long-term stable operation in industrial high wind pressure ventilation systems.
- 2.4 Built-in support design for stable filtration: The filter bag is equipped with a unique support framework that effectively prevents the filter material from collapsing or deforming under airflow impact, ensuring that the filtration area always remains in optimal condition and avoiding airflow reduction or filtration efficiency decline due to filter material adhesion.
- 2.5 Multiple specifications for adaptability and easy installation: The frame thickness includes two standard specifications of 21mm and 25mm, with bag counts of 3 bags, 5 bags, 6 bags, etc., to meet different airflow requirements; the standardized shape design allows direct connection to various central air conditioning, ventilation ducts, and purification equipment, with installation and replacement requiring no complex tools, and can be completed by one person.
3. Product application range
3.1 Central Air Conditioning and Ventilation Systems
In central air conditioning ventilation systems of commercial buildings, office buildings, hotels, and shopping malls, it effectively intercepts large particles of dust, hair, fibers, and other impurities, protecting the internal heat exchangers and fans of the air conditioning units, reducing dust accumulation and maintenance frequency. It can also serve as a pre-filter for home central air conditioning, improving indoor air quality.
3.2 Industrial Production Purification Front-End Filtration
In production workshops of industries such as electronics, food, pharmaceuticals, hospitals, and aviation, as a pre-treatment stage for medium-efficiency filters, it significantly reduces the dust load on medium-efficiency filter materials, extending their service life by 3-4 times and lowering the overall maintenance costs of the filtration system. It is suitable for fresh air pre-treatment scenarios in spray workshops and cleanrooms.
3.3 Ventilation filtration for special places
In places with strict air cleanliness requirements such as hospital operating rooms, pharmaceutical GMP workshops, and food processing clean areas, it serves as primary filtration to ensure the effectiveness of downstream purification. It is also suitable for ventilation systems in large public places such as airports, subways, and train stations, as well as fresh air pre-treatment in laboratories and research centers.
4. Product technical parameters
4.1 Basic parameters
| Project | Detailed Specifications |
|---|---|
| Product Name | Washable bag-type pre-filter |
| Brand | Mingyang |
| Frame material | Aluminum alloy profile |
| Frame thickness | 21mm, 25mm (optional, customizable) |
| Filter media type | Washable primary synthetic fiber filter cotton (density gradually increasing) |
| Filtration principle | Air pressure adsorption method |
| Weight-based efficiency | G3（80%）、G4（90%） |
| Structural Form | Bag Type (3 bags/5 bags/6 bags available) |
| Applicable filtration objects | Air purification, mainly filtering particles ≥5μm such as dust, hair, fibers, etc. |
| Product features | Large airflow, low resistance, washable, high dust holding capacity, long service life |
| Quality standards | GB/T 14295-2019 |
| Applicable Fields | Electronics, food, pharmaceuticals, hospitals, aviation, commercial buildings, public places, etc. |
4.2 Common specifications rated air volume parameters
| Model | Efficiency specification Class | Dimensions W×H×D (mm) | Pocket Number | Effective Filter Area (m²) | Initial resistance (Pa) - 2500m³/h | Initial resistance (Pa) - 3600m³/h | Initial resistance (Pa) - 5000m³/h |
|---|---|---|---|---|---|---|---|
| HD/SC 6635/06-G3 | G3 | 592×592×350 | 6 | 2.44 | 25 | 40 | 75 |
| HD/SC 3635/03-G3 | G3 | 287×592×350 | 3 | 1.22 | 25 | 40 | 75 |
| HD/SC 5635/05-G3 | G3 | 490×592×350 | 5 | 2.03 | 25 | 40 | 75 |
| HD/SC 6635/06-G4 | G4 | 592×592×350 | 6 | 2.44 | 35 | 60 | 110 |
| HD/SC 3635/03-G4 | G4 | 287×592×350 | 3 | 1.22 | 35 | 60 | 110 |
| HD/SC 5635/05-G4 | G4 | 490×592×350 | 5 | 2.03 | 35 | 60 | 110 |
Note: The above are just some commonly used specifications. Shenzhen Mingyang Purification Technology Co., Ltd. can customize various non-standard washable bag filters according to the customer's actual installation space, airflow requirements, and filtration efficiency needs. Customized products also comply with the GB/T 14295-2019 standard, ensuring filtration performance and service life.
5. Frequently asked questions
5.1 How often should washable bag-type filters be cleaned?
The cleaning frequency should be adjusted according to the dust concentration in the usage environment: Generally, for commercial buildings and office spaces, it is recommended to clean once every 3-6 months; for industrial workshops and scenarios with higher dust concentrations, it is recommended to clean once every 1-2 months. When the pressure difference before and after the filter reaches 100Pa, it should be cleaned or replaced in a timely manner to avoid affecting ventilation efficiency.
5.2 What precautions should be taken during cleaning?
It is recommended to use low-pressure clean water (water pressure ≤0.3MPa) to wash along the fiber direction of the filter material, avoiding high-pressure water flow impacts that may cause fiber shedding; compressed air (pressure ≤0.5MPa) can also be used for reverse blowing; after cleaning, it should be air-dried naturally (avoiding exposure to sunlight or high-temperature drying). Once the filter material is completely dry, it can be installed and used. Do not use detergents or chemical solvents for cleaning, as they may damage the filter material.
5.3 How to choose between G3 and G4 efficiency?
G3 efficiency (weight-based method 80%) is suitable for scenarios with low dust concentration and general cleanliness requirements, such as ordinary office spaces and shopping mall ventilation pre-treatment; G4 efficiency (weight-based method 90%) is suitable for scenarios with higher dust concentration or slightly higher cleanliness requirements, such as food processing workshops, hospital outpatient buildings, and electronic factory front-end filtration. If used as a pre-treatment for medium efficiency filters, it is recommended to prioritize G4 efficiency to better protect downstream filter materials.
6. Brand and service guarantee
Shenzhen Mingyang Purification Technology Co., Ltd. has focused on the research and production of air purification filtration products for over 20 years, possessing mature production processes and a professional technical team. They provide one-stop services for washable bag-type initial efficiency filters, including product selection guidance, installation technical support, after-sales issue response, and cleaning maintenance training. All products undergo strict factory inspections, comply with the national standard GB/T 14295-2019, and are equipped with SGS authoritative test reports and product qualification certificates, ensuring quality assurance.
The company offers free technical consulting services and can customize exclusive solutions based on customer parameters such as airflow, wind pressure, and installation space. Upon receiving customer after-sales requests, responses are provided within 10 minutes, and technical support is available within 24 hours, ensuring customers have a worry-free experience from product selection to later use.
