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  1. HEPA - Wikipedia

    Vacuum cleaners simply labeled "HEPA" may have a HEPA filter, but not all air necessarily passes through it. Finally, vacuum cleaner filters marketed as "HEPA-like" will typically use a filter of a …

  2. What is a HEPA filter? | US EPA

    6 days ago · HEPA is a type of pleated mechanical air filter that is common in portable air cleaners, also known as air purifiers. It is an acronym for "high efficiency particulate air" filter, as officially defined by …

  3. What is a HEPA filter and its benefits? - Dyson

    What is a HEPA filter? HEPA (High Efficiency Particulate Air) is an air filter efficiency standard – a certification of a filter’s performance. HEPA is defined as a filter that captures 99.97 per cent of …

  4. What is a HEPA Filter and How Does it Work? - Smart Air

    Apr 17, 2024 · HEPA filters are high efficiency filters that typically capture over 99.5% of all particulate pollution. They’re made from either plastic (PP+PET) or fiberglass, and can capture things like …

  5. What is a HEPA filter, and what is it used for? - TechRadar

    May 11, 2025 · HEPA stands for 'high efficiency particulate air' [filter], and it's a standard for filter effectiveness. To be called a HEPA filter, a filter must meet stringent standards in terms of what it...

  6. Understanding HEPA Filters: What is a HEPA Filter and Why It Matters

    Jan 9, 2026 · What is a HEPA Filter? HEPA stands for High Efficiency Particulate Air. A true HEPA filter captures at least 99.97% of airborne particles measuring 0.3 microns—widely known as the most …

  7. HEPA Air Filters for the Home: What They Do and How to Get the Most ...

    Apr 9, 2025 · Learn about the evolution of HEPA technology, maintenance best practices, and how to choose the right system for cleaner, healthier indoor air.

  8. What Is a HEPA Filter? Your Guide to Cleaner Air – Dreame

    Jun 23, 2025 · A HEPA filter provides clean, particle-free air in many settings. Its structure traps particles as small as bacteria and allergens, improving air quality for better health.

  9. HEPA Filters: What They Mean for Indoor Air Quality

    If you are looking for a room air cleaner or vacuum, you likely have come across the term ”HEPA.” HEPA stands for “high efficiency particulate air” and refers to a type of air filter designed to trap very …

  10. What is a HEPA Filter? - AirPurifiers.com

    Jul 23, 2024 · HEPA, which stands for High-Efficiency Particulate Air, refers to a specific type of air filter designed to capture and eliminate microscopic particles and contaminants from the air we breathe.