It goes without saying that for people suffering from illnesses, HEPA air purifier is an absolute necessity. However, everyone else can also benefit for them. With the horrible indoor air quality in most modern buildings, it is important not to leave the entire heavy-duty filtering to our lungs only. This is mostly because our lungs are precious and can’t be replaced as easily as a filter.
Here are some interesting facts that will move you to install a hepa air purifer to clean your indoor air and make it safer and healthier for you to breathe:
HEPA-Like vs. True HEPA filter
A real HEPA (High Efficiency Particulate Air) filter can remove at least 99.97% of airborne particles as small as 0.3 microns in diameter. However, recently there have been many manufacturers who have come up with variations in the technology. As a result, HEPA-like labels have begun popping up in the market. It is important to know that these devices have not been accredited for their effectiveness and don’t necessarily correspond to the true HEPA standards.
The Secret behind Superb Performance
What makes the HEPA air purifier so efficient is the ultrafine glass-fiber medium which is able to capture microscopic particles which have a tendency to be passed through by other filter mediums quite easily. The process used to ensure this level of performance requires three techniques to work in combination— namely diffusion, interception, and inertial impaction.
HEPA filter media vs. actual HEPA Filters
It is a manufacturer’s duty to inform the people that filters using HEPA air purifier media are not in actual the same as HEPA Filters. This is because the media can have significant filter leakage and can go undetected if they aren’t tested for performance. Only after testing of such media in accordance with industry standards is the only valid form of verification to classify and ensure the integrity of such a filter in accordance with HEPA standards.
HEPA was made in WWII
Officially designed to treat people suffering from overexposures to harmful chemicals used to create bombs in WWII, the designed was soon classified to be usable for commercial and residential usage. It was in the late 1940’s that the US Atomic Energy Commission and the US Army came up with the initial design and testing for the ‘Manhattan Project’. No wonder today HEPA filters are known as the best in the world.
The Authorities Support HEPA
After been tested for laser particle counter measurements, many authorities like CDC, EPA, OSHA, and other federal or state governed agencies specify HEPA filters for asbestos, mold and lead abatement. They have been also verified to work well for TB and SARS isolation rooms and major healthcare projects for renovations.
Replacing HEPA Filters
Even though HEAP filters outlast any of their competitive counterparts, the filters eventually need to be replaced. This is because apart from all the particles which are 0.3microns in diameter or larger are trapped in the filter as well as 0.1micron particles as well due to them being too small to have enough weight to penetrate the filter. Nonetheless HEPA filters need replacement after 1 to 2 years of usage, long after every other type of filter has already reached a 2nd replacement cycle.