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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.
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.
DACH: [10] Majority German-speaking states of Central Europe (excludes the Principality of Liechtenstein). Utilises the German name of Germany and the Latin names of Austria and Switzerland. Germany (Deutschland), Austria (Austria) and Switzerland (Confoederatio Helvetica), with Dach meaning "roof" in German.
Most sovereign states have alternative names. Some countries have also undergone name changes for political or other reasons. Some have special names particular to poetic diction or other contexts. This article attempts to give all known alternative names and initialisms for all nations, countries, and sovereign states, in English and any ...
For convenience, all countries in Europe should be included in this category. This includes all the countries (not territories or former countries) that can also be ...
Below is a list of European countries and dependencies by area in Europe. [1] As a continent , Europe's total geographical area is about 10 million square kilometres. [ 2 ] Transcontinental countries are ranked according to the size of their European part only, excluding Greece due to the not clearly defined boundaries of its islands between ...
The list below includes all entities falling even partially under any of the various common definitions of Europe, geographical or political.Fifty generally recognised sovereign states, Kosovo with limited, but substantial, international recognition, and four largely unrecognised de facto states with limited to no recognition have territory in Europe and/or membership in international European ...
Most regions and provinces of Europe have alternative names in different languages. Some regions have also undergone name changes for political or other reasons. This article attempts to give all known alternative names for all major European regions, provinces, and territories.
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