The word filter is a noun. Filter means (1) device that removes something from whatever passes through it, (2) an electrical device that alters the frequency spectrum of signals passing through it.
Filter is also a verb that means (1) pass through, (2) remove by passing through a filter, (3) run or flow slowly, as in drops or in an unsteady stream.
The following articles and web pages elaborate on the word filter.
HEPA filters are designed to filter the air by trapping 99.9% of airborne particles, such as dust, pollen, and tobacco smoke. HEPA stands for High Efficiency Particulate Air (filter).
A lens may be the most important part of a camera, because it forms and focuses photographic images. A filter, affixed in front of a camera lens, can help protect the lens from damage.
Visit this water filtration equipment retailer directory to find water filtration equipment retailers in the USA. The photo on this web page depicts a blue, water treatment filter.
Air purifiers filter dust, smoke, pollen, pet dander, mold spores, and other airborne particulates in the air. Learn more about air purifiers and how they work.
Regularly maintaining your dirt bike is important to keep it running smoothly. Learn about maintaining your dirt bike's oil, air filter, tires, wheels, brakes, carburetor, and more.
The following articles provide recent filter-related news.
Google announced Tuesday at its Google Marketing Live conference a slew of new products pertaining to shopping, including a personalized Google Shopping homepage which lets consumers compare and filter by features like price or brand.
CNBC. Tuesday, 14 May 2019 18:31 GMT.
Recent research shows plastic pollution in our oceans is affecting every continent on our planet. Nearly 18 billion pounds of plastic ends up in our oceans every year. ...
CBS News. Monday, 22 Apr 2019 18:33:35 +0000.
Google will have to pay publishers for news snippets and Facebook filter out protected content under new copyright rules aimed at ensuring fair compensation for the European Union's $1 trillion creative industries.
Reuters. Monday, 15 Apr 2019 07:03:34 -0400.
Is the dream of one global internet still alive?Increasingly, moves by governments to filter and restrict content are threatening to fragment the system created with ...
Japan Times. Saturday, 13 Apr 2019 15:10:15 +0900.