In 2008, according to the NSDUH, there were 10.6 million adults aged 18 and older (4.7 percent of the population) who reported an unmet need for mental health care. This figure includes 5.1 million who did not receive any mental health care during the past year.
Typically coffee filters are made up of filaments approximately 20 micrometres wide, which allow particles through that are less than approximately 10 to 15 micrometres. For a filter to be compatible with a coffee maker, the filter needs to be a specific shape and size. Common in the US are cone-shaped filters #2, #4, and #6, as well as basket-shaped filters in an 8-12 cup size. Other important parameters are strength, compatibility, efficiency and capacity.
Nominal Micron Rating - expresses the ability of the filter to. capture particles of a specified size at an efficiency between. 50% and 90%. For instance, a nominal rating of 50% at. 10 micron simply means that filter captures 50% of. contaminants 10 micron in size. Keep in mind that nominal. micron ratings may range anywhere from 50 â 98.6% efficient at. removing a specific particle size.