When looking for air purifiers, industry experts suggest opting for a product with a HEPA filter. Though many of us blindly buy a HEPA air purifier, we hardly give a thought to why we need to opt for an air purifier with HEPA filter. With the increasing amount of indoor air pollution, buying an air purifier is a necessity. However, choosing any random product will not meet your purpose. You need an air purifier which effectively traps the indoor air pollutants, which is why you need an air purifier with HEPA filter. To make an informed buying decision, you need to understand how air purifiers with HEPA filters work. In this blog, we discuss in detail the about HEPA filters present in air purifiers.