Author: Vanessa Chen 16 December 2024 Category: Rating Standards
More professional air filtration system, cleaner working environment? Mengfei Filtration will create it for you!
The rating standards of industrial air filters are mainly based on the performance and efficiency of the filter. Different countries adopt different standards, They often have a complete set of certification standards. We list the relatively authoritative and universal rating standards for you:
1. HEPA (High Efficiency Air Filter) Standard:
HEPA filters must be able to capture at least 99.97% of particles with a diameter of 0.3 microns. This standard is usually used in environments with extremely high air quality requirements such as hospitals, laboratories and clean rooms.
The United States Department of Energy (DOE, United States Department of Energy) announced that HEPA filters should filter at least 99.97% of particles in the air with a diameter of ≧ 0.3 microns (µm). At the same time, the technical requirements of the European Committee for Standardization EN 1822:2009. are usually used in the technical specifications of the European Union.
2. ULPA (Ultra-Low Penetration Air Filter) Standard:
ULPA filters are more efficient and can capture at least 99.999% of particles with a diameter of 0.12 microns. They are suitable for places that require extremely high air purity.
ULPA filters are suitable for clean systems of Class 10000-100, air conditioning systems, so the products have been widely used in microelectronics, semiconductors, biological and medical circuits, optical instruments, precision machinery and other fields.
3. MERV (Minimum Efficiency Reporting Value) Standard:
The MERV rating is developed by the American Society of Engineers (ASHRAE) and ranges from 1 to 16. The higher the value, the higher the filtration efficiency. MERV values are commonly used for filters in building ventilation systems.
From the perspective of indoor air quality (IAQ), MERV ratings are important because there are many different types of particles that pollute the air. MERV-13 filters can filter out bacteria, viruses and tiny allergens.
4. European standards such as F8 and F9 (EN 779/EN 1822):
Europe uses independent standards to evaluate the performance of air filters. F8 and F9 are filtration efficiency ratings based on particle size and are commonly used in construction and industrial scenarios.
The DIN EN 1822 standard defines a method for testing filtration efficiency based on particle counting and using test aerosols. Even filters with very high collection efficiency can be tested for particle counting.
5. ISO standards:
ISO 16890 is a new international standard that provides more detailed classification and testing requirements based on the filter’s capture efficiency of particles of different particle sizes.
6. Wind resistance and airflow:
In addition to filtration efficiency, the filter’s wind resistance and airflow are also important performance indicators. High-efficiency filters usually result in higher wind resistance, so it is necessary to balance filtration efficiency and energy consumption.
Mengfei air filter series, covering a variety of filter materials and sizes, with excellent quality, filtration efficiency up to 99.99%-0.5um, can be customized according to customer specific requirements. When selecting industrial air filters, it is necessary to refer to the appropriate rating standards and types according to the specific application scenarios and requirements to ensure that the required air quality standards are achieved.