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).
Introduction to built-in kitchen appliances that are used to cook food, including ranges, stoves, cooktops, and ovens, as well as hoods that are used to exhaust heat, smoke, steam, and cooking odors.
A close-up of a clean air filter in black and white shows its complex texture and structure. Breathing clean air has become more of a priority in a world where pollution, allergens, and poor air quality are becoming more rampant.
U.S. President Donald Trump said his wife, first lady Melania Trump, was safe on Wednesday after a mechanical problem forced her airplane, which was headed for Philadelphia, to return to the Joint Base Andrews military facility in Maryland.
Reuters. Wed, 17 Oct 2018 15:10:08 -0400.
Chronic obstructive pulmonary disease normally affects people over 40, but it can also occur in younger people. People who smoke heavily or work in environments with high exposure to pollutants may develop it earlier. ...
Medical News Today. Tue, 16 Oct 2018 07:00:00 PDT.
PRINCETON, Ind. (AP) - Officials say a buckled stretch of track is believed to have caused a fiery freight train derailment in southwestern Indiana that belched black smoke into the sky and forced the evacuation of nearby homes. ...
Washington Times. Tue, 16 Oct 2018 07:49:01 -0400.