HEPA filtration is really an acronym. It stands for (High Efficiency Particulate Air) filter. To be able to use this acronym, your filter media must be able to filter particles as small as .3 microns in size and be 99.9% efficient at trapping those particles at .3 microns. If you suffer from allergies, asthma, COPD or any other respiratory issues, your vacuum cleaner really can make a difference in how much dust is being allowed to pass through it and back into your home.
One common perception that isn't always true is to make the assumption that if your vacuum cleaner has a HEPA filter, it must be filtering all that dust out of the air. Unfortunately this is rarely true. In fact, we have found (Airflow & Filtering Test) that most of the so-called "high filtration" brands on the market have not only very poor filtration, but they also have very low suction. These vacuum cleaners will typically have a true HEPA filter in them, but you will find that they often leak so much dust out of the vacuum cleaner before it ever gets to the HEPA filter that any benefit you might have gained by having the filter is negated by the amount of dust allowed to bypass the filter and end up back in your home. You certainly will want to use a HEPA (High Efficiency Particulate Air) filtered vacuum cleaner, but you will want to get educated about it first before you purchase one.
There are many good vacuum cleaners on the market that not only have good pickup ability, but also have very good filters as well. If you are interested in an upright, we like to recommend Simplicity and SEBO, and if you prefer a canister vacuum cleaner, we like to recommend SEBO, Miele, and Riccar.
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