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2. Minimum efficiency reporting value - Wikipedia

   en.wikipedia.org/wiki/Minimum_Efficiency...

   The MERV scale is designed to represent the worst-case performance of a filter when dealing with particles in the range of 0.3 to 10 micrometers. The MERV value is from 1 to 16. Higher MERV values correspond to a greater percentage of particles captured on each pass, with a MERV 16 filter capturing more than 95% of particles over the full range.

3. HEPA - Wikipedia

   en.wikipedia.org/wiki/HEPA

   [citation needed] These ratings are used to rate the ability of an air cleaner filter to remove dust from the air as it passes through the filter. MERV is a standard used to measure the overall efficiency of a filter. The MERV scale ranges from 1 to 16, and measures a filter's ability to remove particles from 10 to 0.3 micrometer in size.

4. Air filtration in operating rooms - Wikipedia

   en.wikipedia.org/wiki/Air_filtration_in...

   Air filtration standards differ between the U.S. and other countries. The American ASHRAE rating system does not account for changes in filtration efficiency due to electrostatic charge. These MERV ratings do not account for a decrease in efficiency over the first few weeks of use due to a drop in static charge.

5. Is your heater making you sick? How to avoid cold-like ...

   www.aol.com/lifestyle/heater-making-sick-avoid...

   The higher the MERV rating, the better the filter is at trapping specific types of particles. “Filter holders should be airtight at the perimeter, and only pleated media filters should be used ...

6. Microparticle performance rating - Wikipedia

   en.wikipedia.org/wiki/Microparticle_performance...

   The Microparticle Performance Rating (MPR) is an air filter rating system created by the company 3M. It rates the ability of an air filter to filter out micro particles. Because MPR was created by 3M, it only applies to filters produced by the 3M brand. [1]

7. Eggs now qualify as ‘healthy’ food, FDA says: Here’s why

   www.aol.com/eggs-now-qualify-healthy-food...

   The U.S. Food and Drug Administration (FDA) now classifies eggs as a “healthy, nutrient-dense" food, according to a new proposed rule. Registered dietitians react to the change.