Iranian Firm Develops New Generation of HEPA Filters with Nanofiber Technology
By reducing pressure drop, increasing filtration efficiency, and providing high stability in various working conditions, the technology is an important step in indigenizing the production of advanced air filters and reducing the country's technological dependence.
By utilizing electrospinning technology and designing polymer nanofibers with a diameter of less than one-tenth of a micron, the company has been able to produce filters that, while achieving high efficiency in the HEPA class, also create very low pressure drop.
This feature allows ventilation and air purification systems to consume less energy, thereby reducing operating costs.
In the new nanofiber filters, the morphology of the structure and the uniformity of the surface of the fibers are designed in a way that particles much smaller than 0.3 microns are trapped. The combination of these nanofibers with resistant substrates creates a strong and flexible structure that is resistant to tearing, moisture and environmental changes. Unlike glass fiber filters, this product does not contain hazardous particles and is harmless to human health; therefore, it is perfectly suitable for use in medical equipment, operating rooms, respiratory devices and sensitive pharmaceutical and food industries.
Also, the multilayer design and the possibility of customizing the structure have made these filters an economically attractive option to replace imported products.
The product was showcased at the 16th International Nano Technology Exhibition and the First Exhibition of Advanced Technologies of Iran which was inaugurated at the Tehran International Fairground.
Held from November 2 to 5, the Nano Exhibition featured over 150 innovative companies showcasing advancements in nanotechnology. Meanwhile, the Exhibition of Advanced Technologies hosted 80 knowledge-based and technological products, attracting visitors, particularly students, researchers, and investors.
In a relevant development in March, an Iranian technological company had also managed to produce different types of special filters for application in various industries, including auto-making.
“Our company enjoys production line for metal filters and industrial filters that require a clean room. Nano filters are also produced in these controlled environments,” said Elnaz Barati, a technical and engineering expert at Setareh Palayeh company.
“The company operates in two sectors of product manufacturing and research and development (R&D), and in addition to automotive filters, it also produces a variety of industrial filters, including air, oil, and hydraulic filters. Semi-automatic production lines for automotive filters are another activity of our company,” she added.
“Our company also produces car cabin filters, some of which are nanotechnology-based and based on the electrospinning process. We are also able to make a variety of hydraulic systems, gas elements, iron, steel, and aluminum industry filters, and HEPA filters,” Barati went on to say.
4155/v
