Hello everyone, in today’s rapidly industrializing world, air quality issues are becoming more and more pressing. Smog, dust, and harmful gases flood our living spaces, seriously affecting our health and quality of life. In the quest for cleaner air, primary air filters are the unsung heroes! As the first line of defense in any purification system, these seemingly simple devices play a role that cannot be overlooked.
Types and Construction of Primary Air Filters
Fiberglass Cotton Primary Filter
The fiberglass cotton primary filter is mainly used for filtering dust particles larger than 10 microns. It’s especially suitable for environments with corrosive gases, such as primary air filtration in central air conditioning systems or filtering screen printing ink fumes.
The filter’s frame comes in several styles: aluminum, galvanized steel, or paper, much like giving the filter different “outfits” to match customer installation needs and budget. The aluminum frame is like a stylish metal jacket—durable and sleek. The galvanized steel frame is more like a simple work uniform, offering solid protection, while the paper frame acts like a lightweight disposable raincoat, ideal for temporary or budget-conscious situations.
For protection, the filter is equipped with a double-sided painted mesh or aluminum mesh, like putting on a “helmet” that protects the filter media and ensures smooth airflow. The painted mesh is like a coated safety helmet, offering resistance to damage and corrosion, while the aluminum mesh works like a breathable sun hat, allowing air to flow while still providing some protection.
The filter media is corrosion-resistant fiberglass with a distinctive green-white color. This material acts like a “shield,” enabling the filter to operate steadily even in harsh industrial environments.
This filter has many advantages: it’s durable like a marathon runner, has low resistance to ensure smooth airflow—think of driving down a highway—and can handle large volumes of air thanks to its expansive filter area. Common thicknesses include 21mm, 25mm, and 46mm, with the thickness being chosen based on airflow needs and space constraints, just like we choose clothes based on weather conditions.
Primary Panel Air Filter
The primary panel air filter is used to filter dust particles larger than 5 microns, making it perfect for central air conditioning systems and cleanroom air systems.
Its frame can be aluminum or galvanized steel, providing a “frame choice.” The protection mesh can be a painted grid or aluminum mesh, assisting in airflow and offering protection. The filter media is white or blue-white cotton, which provides good filtration and breathability.
One standout feature of this filter is its washability, meaning it can be reused multiple times—like an eco-friendly “green warrior.” Its filtration efficiency can reach G2/G3 standards, meeting the primary air filtration needs of most environments. Additionally, it boasts low resistance, high airflow, and a slim design. Standard thicknesses are 21mm and 46mm, and custom sizes are available to suit specific customer requirements, making installation easier.
Primary Pleated Air Filter
The primary pleated air filter is also designed to filter dust particles larger than 5 microns, commonly used in central air conditioning and cleanroom systems.
Its frame options include aluminum, galvanized steel, or paper, offering a variety of “shells.” The protection mesh can be painted double-sided or aluminum, helping with airflow and filter protection. The filter media is a blend of non-woven fabric and polyester fiber, available in white or blue, giving it some unique benefits: it’s lightweight like a “nimble little sprite,” cost-effective, and disposable, aligning with modern sustainability goals.
It has low resistance, a large filter area, and high airflow, making it efficient at handling large volumes of air. Thickness options include 21mm, 25mm, 46mm, and 96mm, with the size chosen based on the specific space and airflow needs—much like choosing the right-sized furniture for different rooms.
Applications of Primary Air Filters in Various Industries
Industrial Applications
In machine manufacturing workshops, research shows that without a primary air filter, the concentration of metal shavings and dust in the air can reach up to 250 mg/m³, increasing equipment failure rates by 15%. After installing a primary air filter, the concentration of particulates drops to below 50 mg/m³, significantly extending the equipment’s operational life.
In electronics factories, dust particles can cause short circuits by settling on electronic components. Without primary filters, the failure rate can be as high as 8%, but after installing them, it drops below 2%, while product pass rates improve from 85% to 98%.
In the chemical industry, airborne chemical dust poses significant health risks to workers. Long-term exposure to unfiltered air increases the likelihood of respiratory diseases by 5 times compared to environments with primary filters.
Commercial Building Air Conditioning Systems
In commercial buildings, central air conditioning systems are crucial for maintaining a comfortable environment. Primary air filters, as the first line of defense, effectively filter out large particles such as pollen, hair, and dust, preventing them from clogging heat exchangers, fans, and other components. This extends the life of the air conditioning system.
Moreover, primary filters reduce the load on subsequent filters, increasing the overall filtration efficiency of the system. In commercial spaces such as office buildings, malls, and hotels, installing primary filters ensures clean indoor air, providing a healthy and comfortable environment for users.
Conclusion
Primary air filters, as the entry-level product in air purification systems, hold irreplaceable importance. Our company offers a full range of primary air filters, covering various types and specifications to meet the needs of different industries and applications. Whether in industrial settings or commercial building air conditioning systems, primary filters effectively remove larger airborne particles, laying the groundwork for more precise filtration steps and ultimately creating a healthier, more comfortable environment. Friends, have you noticed the role primary air filters play in your daily life?