HEPA filters come in different shapes, sizes, configurations and products. For our end, we offer HEPA filtration equipment as part of our allergy deep-clean package, which covers HEPA vacuuming of air vents as well as air filters, etc. HEPA stands for “High Efficiency Particulate Air,” and it is used in a variety of applications such as air filters, vacuum bags and other types of contamination control. To carry its designation, a HEPA filter must trap 99.97% of particulates 0.3 microns or larger. If you suffer from allergies, HEPA filters are your friend as they contain more particles and contaminants than traditional filters.