Product Details
1. Product Introduction
Shenzhen Mingyang Purification Technology Co., Ltd.The washable bag-type primary efficiency filter developed and produced is a cost-effective filtration product designed for industrial purification and central air conditioning systems. Its core positioning covers dual scenarios: 'pre-treatment for medium efficiency filters' and 'general ventilation primary filtration'. The product uses synthetic fiber filter media with progressively increasing density combined with a high-strength aluminum alloy frame. Based on the principle of air pressure adsorption filtration, it efficiently captures airborne dust particles ≥5μm, with gravimetric filtration efficiency reaching G3/G4 levels.Reusable, high airflow, high dust holding capacity, low resistanceFour core advantages: significantly reduces filter replacement costs, extends the service life of downstream filtration equipment, and is an ideal choice for industries such as electronics, food, pharmaceuticals, and hospitals that have basic air cleanliness requirements. Non-standard specifications can be customized to fully match airflow and installation needs in different scenarios.
2. Key Product Features
- 2.1 Washable design reduces operating costsThe filter media is made of synthetic fiber with strong toughness and washability, supporting multiple cleanings with clean water or compressed air blowing. The filtration efficiency remains stable after cleaning. Under normal maintenance, it can be reused 3-5 times, reducing filter replacement frequency by over 70% compared to disposable filters, significantly lowering long-term operating costs.
- 2.2 High-efficiency filtration structure for better airflowAdopting a bag-type folding structure, the effective filtration area is 3-5 times that of traditional panel filters. Under the same airflow conditions, the initial resistance is only 25-35Pa, resulting in lower energy consumption during operation. The progressively increasing density design of the filter media allows layered interception of dust particles of different sizes, with dust holding capacity far exceeding ordinary filter media, extending service life by 50%.
- 2.3 Seamless fusion bonding for structural stabilityAdopting advanced seamless fusion bonding technology, the filter media and frame are tightly combined with strong air tightness. Under high air pressure (≤1000Pa), there is no air leakage, rupture, or filter media detachment, making it suitable for long-term stable operation in industrial high-pressure ventilation systems.
- 2.4 Built-in support design for stable filtrationThe filter bag is equipped with a unique support skeleton that effectively prevents the filter media from collapsing or deforming under airflow impact, ensuring the filtration area always maintains optimal condition and avoiding airflow reduction or filtration efficiency decay caused by filter media adhesion.
- 2.5 Multi-size compatibility for easy installationThe frame thickness includes two standard specifications: 21mm and 25mm. The number of bags is available in models such as 3, 5, and 6 bags to meet different airflow requirements. Standardized external dimensions allow direct connection to various central air conditioning systems, ventilation ducts, and purification equipment. Installation and replacement require no complex tools and can be done by a single person.
3. Product Applications
3.1 Central air conditioning and ventilation systems
Primary filtration in central air conditioning ventilation systems of commercial buildings, office buildings, hotels, shopping malls, etc., effectively intercepting large particles such as dust, hair, and fibers, protecting the internal heat exchangers and fans of the air conditioning unit, reducing equipment dust accumulation and maintenance frequency. It can also be used as pre-filtration for household central air conditioning to improve indoor air quality.
3.2 Pre-filtration for industrial production
Ventilation systems in production workshops of electronics, food, pharmaceuticals, hospitals, aviation, and other industries, serving as pre-treatment for medium efficiency filters, significantly reduce the dust load on medium efficiency filter media, extending their service life by 3-4 times and lowering the maintenance cost of the overall filtration system. Suitable for fresh air pre-treatment scenarios in spray painting workshops and clean plants.
3.3 Special Environment Ventilation and Filtration
Places with strict air cleanliness requirements such as hospital operating rooms, pharmaceutical GMP workshops, and food processing clean areas, serving as primary filtration to ensure downstream purification effectiveness. Also suitable for ventilation systems in large public places like airports, subways, and train stations, as well as fresh air pre-treatment in laboratories and R&D centers.
4. Product Technical Parameters
4.1 Basic Parameters
| Project | Detailed Specifications |
|---|---|
| Product Name | Washable bag primary filter |
| Brand | Mingyang |
| Frame Material | Aluminum Alloy Profile |
| Frame Thickness | 21mm, 25mm (optional, custom sizes available) |
| Filter Media Type | Washable pre-filter synthetic fiber filter media (progressive density) |
| filtration principle | Air Pressurization Adsorption Method |
| Gravimetric Efficiency | G3（80%）、G4（90%） |
| Structure Type | Bag type (3/5/6 pockets optional) |
| Applicable Filtration Target | Air purification, mainly filters ≥5μm dust particles, hair, fibers, etc. |
| Product features | High airflow, low resistance, washable, high dust holding capacity, long life |
| Quality Standards Implemented | GB/T 14295-2019 |
| Application Fields | Electronics, food, pharmaceuticals, hospitals, aviation, commercial buildings, public places, etc. |
4.2 Common specification rated air volume parameters
| Model | Efficiency Class | Dimensions W×H×D (mm) | Pocket Number | Effective filtration 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 only some common specifications and models.Shenzhen Mingyang Purification Technology Co., Ltd.Custom non-standard washable bag filters can be produced according to the customer's actual installation space, airflow requirements, and filtration efficiency needs. Custom products also comply with the GB/T 14295-2019 implementation standard, ensuring filtration performance and service life.
5. FAQ
5.1 How often is the cleaning frequency recommended for washable bag filters?
The cleaning frequency should be adjusted based on the dust concentration of the usage environment: generally, for commercial buildings and office spaces, cleaning every 3-6 months is recommended; for industrial workshops with high dust concentration, cleaning every 1-2 months is recommended. When the pressure difference across the filter reaches 100Pa, it should be cleaned or replaced promptly to avoid affecting ventilation performance.
5.2 What should be noted during cleaning?
It is recommended to rinse with low-pressure clean water (water pressure ≤0.3MPa) along the direction of the filter fiber to avoid high-pressure water flow causing fiber shedding. Alternatively, compressed air (pressure ≤0.5MPa) can be used for reverse blowing. After cleaning, air dry naturally (avoid direct sunlight or high-temperature drying) until the filter media is completely dry before reinstallation. Do not use detergents or chemical solvents for cleaning to avoid damaging the filter media.
5.3 How to choose between G3 and G4 efficiency?
G3 efficiency (gravimetric 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 (gravimetric method 90%) is suitable for scenarios with higher dust concentration or slightly higher cleanliness requirements, such as food processing workshops, hospital outpatient buildings, and front-end filtration in electronic factories. If used as pre-treatment for medium efficiency filters, G4 efficiency is recommended to better protect downstream filter media.
6. Brand & Service Guarantee
Shenzhen Mingyang Purification Technology Co., Ltd.With over 20 years of experience in R&D and production of air purification filtration products, we have mature production processes and a professional technical team. For the washable bag-type primary efficiency filter, we provideproduct selection guidance, installation technical support, after-sales issue response, cleaning and maintenance trainingand other one-stop services. All products undergo strict factory inspection, comply with the national implementation standard GB/T 14295-2019, and are accompanied by SGS authoritative test reports and product certificates, ensuring quality.
The company provides free technical consultation services, offering customized solutions based on customer parameters such as airflow, air pressure, and installation space. After receiving a customer service request, a response is given within 10 minutes, and technical support is provided within 24 hours, ensuring customers are worry-free from product selection to post-use.
