| You will probably see items that are labeled "True" | | | | to filter, even including those that are smaller. |
| HEPA if you shop for HEPA air purifiers. So, I'm | | | | They also are the most likely to cause problems |
| sure you're wondering, does that mean there's a | | | | in the human body, and have no problem scooting |
| false one? Of course you would never find a | | | | right past our natural defenses. See, 0.3 micron |
| product that boldly proclaimed to be a | | | | particles are more scary than nerdy, aren't they? |
| sub-standard HEPA purifier, but to be called a | | | | If you want an idea of the size we're talking |
| True HEPA purifier, there are some differences. | | | | about, compare 0.3 microns to the human hair. |
| As with any other purchase, it's left to the | | | | Human hair is generally anywhere between 70 and |
| consumer to figure out the differences and know | | | | 100 microns thick. |
| if they need to look for one or the other. Let's | | | | True HEPA Filters Actually Work Better When |
| examine True HEPA air purifiers and why some | | | | Dirty |
| products may not claim this. | | | | Another big difference between HEPA-type |
| How Are True HEPA Purifiers Different | | | | purifiers and True HEPA filters is how they filter |
| There is a difference between a HEPA-type air | | | | when they become dirty. This is where the |
| purifier, and a True or absolute HEPA purifier, | | | | "Absolute" part of the equation comes in. Any |
| which is also called an absolute HEPA air purifier. | | | | absolute filter media will actually become more |
| Even if folks do not always make it clear, when | | | | effective as it gets dirtier. The more particles that |
| they're comparing HEPA filters to other air | | | | are trapped in an absolute filter, the more |
| filtration medium, especially if they're referencing | | | | effective it will be. The reason why is actually |
| the likes of OSHA or the EPA, they're talking | | | | pretty simple. As dirt and other debris builds up |
| about True or absolute HEPA filters. Yes, there | | | | around the air holes, those holes get smaller and |
| are many types of air cleaners and purifiers | | | | smaller, allowing less to get through. |
| available, but the only ones that places like labs | | | | Is It A True HEPA Air Purifier? How To Know |
| and hospitals use are True HEPA air purifiers. | | | | Look for products that actually advertise that |
| True HEPA Filters Stop 0.3 Micron Particles Of | | | | they are True or absolute HEPA air purifiers. The |
| DOOM | | | | alternative is the HEPA-type purifier, which is really |
| Of the different specifications that True or | | | | just an imitation, and is not held to any particular |
| absolute HEPA purifiers have to meet, the most | | | | standard. If you find a purifier that doesn't say |
| important is probably the 97% of all 0.3 micron | | | | either HEPA-type or True HEPA, you can also |
| particles. This stat is incredibly important, and not | | | | reference other specifications on the box. Look |
| as technical as it may sound. Of all the different | | | | for one that filters 97% or more of the 0.3 |
| pollutants floating around out there, it's been found | | | | micron particles if you want a True HEPA air |
| that 0.3 micron particles generally are the hardest | | | | purifier. |