When it comes to air purification, True HEPA filters are the gold standard. But what exactly are they? A True HEPA filter is the only type of HEPA filter that meets the DOE standard for HEPA filtration, has the highest efficiency and reaches the 99.97% threshold. This type of filter is beneficial for people with asthma and allergies, as it traps fine particles such as pollen and faeces from house dust mites that can cause allergy and asthma symptoms. In this guide, we'll explain what a True HEPA filter is, how it works, and why it's so important for air purification.
We'll also discuss the difference between True HEPA filters and other types of HEPA filters, as well as the importance of changing your filter regularly.
What is a True HEPA Filter?A True HEPA filter is a type of mechanical air filter that works by passing air through a fine mesh that traps harmful particles such as pollen, pet dander, dust mites and tobacco smoke. To meet the HEPA specification, an air filter must trap 99.97 percent of all particles with a diameter of 0.3 microns. This efficiency index expressed by particles is for every 10,000 particles that flow through a True HEPA filter, only about 3 of these particles escape into the air after being filtered through this filtration method.True HEPA filters are designed to effectively stop very fine particles, but they don't filter gases or odor molecules.
This is why many air purification companies use a carbon air filter for the adsorption of chemicals and odors, together with the True HEPA filter to filter particles in the air, making the air purifier a complete contaminant removal device for your indoor environment.
Why Are True HEPA Filters Important?True HEPA filters are important because they are the only type of HEPA filter that meets the DOE standard for HEPA filtration. This means that if an air filter claims to be a HEPA filter, you're basically certain that the manufacturer tested the filters and that they comply with the DOE standard.True HEPA filters are also important because they are used in many commercial environments where strict regulations must be followed when installing HEPA filters. For example, government contractors must comply with strict regulations when installing True HEPA filters in nuclear facility ventilation systems.
What Is The Difference Between True HEPA Filters And Other Types Of Filters?The main difference between True HEPA filters and other types of filters is that other types of filters do not meet the DOE standard for HEPA filtration. This means that they do not have the same efficiency or filtering power as a True HEPA filter.Another difference between True HEPA filters and other types of filters is that other types of filters do not have the same ability to capture and remove other air contaminants such as gaseous and odorous compounds.
This means that they will not be able to remove these pollutants from the air as effectively as a True HEPA filter.