HEPA filters (High Efficiency Particular Air) are among the most powerful filtration systems available, capturing up to 99.9% of impurities. The degree of efficiency is indicated by the numbers 10 to 14, where the number 10 indicates 85% filtration efficiency and 14 represents 99% filtration efficiency.
The HEPA filter is located behind the vacuum motor, where it captures dust and debris. If you have a family history of allergies, it is recommended to choose a vacuum cleaner with this type of filtration.