Does the SEBO have a HEPA filter?
Just because a machine has a great filter doesn't mean it has great
filtration. Most vacuum companies with high filtration are actually
quoting a specification made by the manufacturer of the filter. Their
claims do not take into consideration that air can escape the machine
through leaks in the machine or exterior bags. The following is from
an article on this subject from Indoor Environment Review, March 1998
issue.
"While researchers have studied a few vacuums that contained the
high-efficiency particulate air, or HEPA, filters, most manufacturers
claim their vacuums are "HEPA quality". We can only imagine
what the average consumer is thinking they're buying when they bring
a "HEPA" vacuum home.
"New test results presented at a recent EPA conference on particulates
proved there's no guarantee of filtration quality when it comes to seeing
the word "HEPA" on a vacuum. Researchers found that HEPA filters
must be tightly sealed in the system to be of use in capturing particulates.
In addition, some vacuums tested had HEPA filters that were so small,
they weren't efficient at certain (air) flow rates. So just what can
be considered an efficient vacuum in today's marketplace?
One researcher, Susan Goldsmith of InterBasic Resources, Inc., suggests
consumers look for some kind of certification on the vacuum, where the
cleaner and filter was tested, and whether the entire assembly or filter
was tested before purchasing a vacuum cleaner with a so-called HEPA
filter.
The SEBO automatic X achieves its "S-Class" Filtration rating
due to its superior combination of filter media and airtight machine
design. Measuring the SEBO as a complete unit gives a more accurate
measurement of its true filtration performance.