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.
A truck bomb killed at least 76 people and injured at least 50 others in Somalia's capital Mogadishu. The blast happened at a busy security checkpoint during the morning rush hour, sending a plume of thick black smoke across the city. ...
CBS News. Sat, 16 May 2020 07:15:51 -0400.