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Your Questions on HEPA Air Purifiers, Answered
What’s the difference between True HEPA and HEPA-type filters?
True HEPA filters are constructed to a defined particle-capture standard, whereas HEPA-type filters don't follow that same benchmark. In other words, true HEPA filters are designed for more consistent fine-particle capture.
Read more on this here: HEPA vs. True HEPA – Which Air Purifier Filter Is Best for You?
How often do you replace the HEPA filter in an air purifier?
Typically, you should replace HEPA filters every 6–12 months. Timing depends on a few factors, including the model, usage and indoor conditions. Homes with pets, smoke or heavier dust levels may require more frequent changes.
You should follow the filter life reminder in your Dreamehome app or on the device so the system's purification performance stays consistent over time.
Can you clean a HEPA filter?
In most cases, you should replace the main HEPA filter rather than wash it. Washing the filter can affect the filtration performance. Make sure you adhere to the recommended care instructions for your specific air purifier model. Or, if you have a Dreame Air Purifier, you can find further information on your Dreamehome app about when your filter needs replacing.
What is a "HEPA alternative" air purifier?
Our "HEPA alternative" air purifiers use a high-efficiency composite filter instead of a denser HEPA filter. This approach allows more air to flow through the system while still capturing those fine particles. For example, models like the Dreame AP10 use multi-stage composite filtration to support stronger circulation. In turn, this helps to maintain higher airflow and overall purification performance across your room.