MSN: Llamamiento de Merz para que sirios regresen a su país causa polémica
Llamamiento de Merz para que sirios regresen a su país causa polémica
Berlín, 31 mar — La declaración del canciller alemán, Friedrich Merz, de que el 80 % de los más de 900.000 sirios que se encuentran en el país deberían regresar a su patria en un plazo de tres años ...
Yahoo Noticias en Español: Merz: un "desliz" que no debería afectar a las relaciones comerciales con Brasil
Merz: un "desliz" que no debería afectar a las relaciones comerciales con Brasil
Vacuum cleaners simply labeled "HEPA" may have a HEPA filter, but not all air necessarily passes through it. Finally, vacuum cleaner filters marketed as "HEPA-like" will typically use a filter of a similar construction to HEPA, but without the filtering efficiency.
HEPA is a type of pleated mechanical air filter that is common in portable air cleaners, also known as air purifiers. It is an acronym for "high efficiency particulate air" filter, as officially defined by the U.S. Department of Energy.
A HEPA filter is a pleated mechanical high efficiency particulate air filter that captures at least 99.97 percent of 0.3 micron particles. In healthcare and other controlled spaces, HEPA is used where very high particle removal is required.
What is a HEPA filter? HEPA (High Efficiency Particulate Air) is an air filter efficiency standard – a certification of a filter’s performance. HEPA is defined as a filter that captures 99.97 per cent of particles down to 0.3 microns and is tested using a standard by an organisation called the IEST.