Types of Air Filters Electrostatic filters provide the highest level of filtration for small particles. It's important to note that MERV and HEPA are two different types of air filters, although you've probably seen both related to air filtration. HEPA, which stands for high-efficiency particulate air, is a highly absorbent media filter that meets HEPA standards. For the European standard, a True HEPA filter will filter the air and capture at least 99.95% of particles 0.3 microns in size.
A True HEPA reports that the filter captures at least 99.97% of particles of at least 0.3 microns in size by DOE standards. It circulates room air more than four times in an hour and is equipped with a built-in smart filter replacement reminder and night light. A HEPA filter is essentially the ultimate solution in the air filter world and far exceeds what a MERV 13 can do. There are several standards and test procedures that help show the efficiency with which air purifiers clean the air in a room.
The starting price of this type of air filter for HVAC systems is high, but it should be considered as an investment that will last for many years. The most common system for measuring the filtration capacity of an air filter is known as a MERV, or minimum efficiency report value. The Bissell air purifier is equipped with Wi-Fi, allowing you to control it via the brand's app or monitor air quality when you're not at home. AHAM also tests air purifiers to determine if they meet ozone limits.
Mendez explained that ozone can be a by-product of some air purifiers. For example, an air filter cannot remove moisture from your home or prevent the infiltration of outdoor air. Not all filters are built equal, so choosing the right filter depends on what you need to purify from the air. While these filters have a low MERV rating, they are a great long-term investment for someone who doesn't have strong preferences about HVAC filter types and doesn't need any special filters.
In addition to its HEPA filter, the Cusinart air purifier also features washable and reusable metal filters and activated carbon filters, all of which work together to capture 99.9 percent of airborne particles of 0.1 micron or greater. These filters aren't known for improving air quality, as they can't put much effort into it and can only trap some of the dust and allergens.