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HEPA Vacuum FAQ
What is a HEPA vacuum?
HEPA stands for High-Efficiency Particulate Air, and a certified HEPA filter captures 99.97% of particles down to 0.3 microns. A HEPA vacuum cleaner, sometimes referred to as a HEPA filter vacuum, seals that filter inside the machine, trapping fine dust and pollen before they recirculate through your home. See our guide on what is a HEPA filter for the full breakdown.
What's the difference between true HEPA and "HEPA-style"?
True HEPA filters go through independent, third-party lab testing to certify a 99.97% capture rate at 0.3 microns. Dreame tests its own robot vacuums internally, using sealed filtration built with eco-friendly HEPA materials to capture up to 99% of fine dust. Either way, you get a sealed system trapping fine dust while you clean, keeping more of it out of the air you breathe.
Do HEPA vacuums help with allergies and pet dander?
Yes. Sealed filtration traps fine allergens like pet dander inside the machine while you clean. See our guide on getting rid of dust mites for more ways to reduce allergens around your home.
Is a robot or cordless HEPA vacuum better for my home?
A robot vacuum with a HEPA filter works best for hands-off daily cleaning across open floors even while you're away from home. You can use a cordless stick vacuum to clean stairs and tighter spots a robot vacuum can't reach. Many households use both types together.
How often should I clean or replace the HEPA filter?
You can rinse the filter under running water every two weeks, but make sure to let it dry fully before you put it back in. You'll also need to plan to replace it every three to six months or sooner if you have pets. If you notice your suction dropping, that's often the first sign the filter needs attention sooner than scheduled. Our guide on how to clean vacuum HEPA filters goes into more details if you need more guidance.
Can a HEPA vacuum pick up fine dust like drywall or mouse droppings?
A HEPA vacuum's sealed filtration is built for everyday fine dust from cooking and pet shedding. For anything hazardous, like lead paint dust or construction debris, you'll want a certified remediation service or a vacuum rated specifically for hazardous materials, since standard filters aren't built to contain those particles safely.