What is the difference between a HEPA filter and a true HEPA filter?
What is the difference between a HEPA filter and a true HEPA filter?
The main differences between HEPA-type and True HEPA filter are the filtration efficiency. In general, HEPA-type filter has a 99% efficiency rate of capturing particles as small as 2 microns. True HEPA filter up the game with a better 99.97% efficiency rate at particles as small as 0.3 microns.
What Merv is a true HEPA filter?
MERV 17
All HEPA filters have a rating of a MERV 17 or higher. A HEPA filter with a MERV 17 rating will trap 99.97% of air particles that are 0.3-1.0 micron in size and an even better % of particles below 0.3 microns and above (HEPA filters are rated at their worst performance).
How much does a true HEPA filter cost?
How much does a HEPA filter cost? HEPA filters vary in cost and range from $16–$95 depending on quality, estimated longevity, and manufacturer. Air purifiers that rely on HEPA filters range from $50–$1,000 depending on size, quality, and projected coverage area.
Are all true HEPA filters the same?
No, not all HEPA filters are the same. There are significant differences in the HEPA filters being made by many air purifier brands. Depending on the quality of the materials, as well as the density of HEPA filter’s fibers, one HEPA filter may be different from one another.
Is True HEPA same as H13?
The best HEPA air purifiers will use H12 HEPA filters. However, H13 is even better than normal HEPA filters. Specifically, the H13 filter captures particles that are more than 3x smaller than classic HEPA filters. “H13 HEPA filters remove at least 99.9% of airborne particles 0.1 micrometers (μm) in diameter.”
How do I know if my filter is HEPA?
Look for the serial number and test results printed on true or absolute HEPA filters. Make sure that the test results at 0.3 microns are 99.97 percent or above. The size of 0.3 microns is the testing standard because most filters will perform better with both smaller and larger particles.
Which is better True HEPA or H13?
True HEPA generally ranges from H10-H12. This is the “grade” of HEPA or the level of efficiency. The higher the grade, the better the filter. Whereas H10-H12 filters only trap 85-99.5% of all particles that are 0.1 microns in diameter, HEPA H13 and H14 trap 99.95% and 99.995% of such particles, respectively.
What is the difference between H13 and H14 HEPA filters?
H13-H14 HEPA are within the highest tier of HEPA air filtration and are considered medical-grade. “A HEPA grade of H13 can remove 99.95% of all particles in the air measuring 0.2 microns in diameter, while a HEPA grade H14 removes 99.995%,” says Nagl.
