Tiempo que ud lleva usando Excel 1 a 3 meses
Frecuencia de uso de Excel diariamente
En una escala 1 al 3:
¿Cómo ud se clasificaría en cuanto a sus destrezas usando Excel?
  bajo medio alto 
Cómputos matemáticos, aplicar fórmulas 
Uso de distintos tipos de gráficas 
Resumir, agregar, analizar datos 
Crear informes 
¿Cuáles son las destrezas prioritarias que desea aprender de Excel? Recomendaciones generales para mejorar gráficas; Pivot tables; Excel Data Model; DAX (Data Expressions)
Destrezas: Sugiera otras destrezas que no estén en la lista...

​To create dirty air we burn wooden matches, which produce millions of particles in the zero.three-micron HEPA check-standard vary. Then we use an expert particle counter to immediately measure how properly the purifiers remove the smoke from the air. And we measure the purifiers’ noise output and power consumption on their varied settings, to gauge their liveability and running costs.

We don’t contemplate sensible performance a necessity as a result of our years of testing have confirmed that a good china air purifier will create and keep glorious air high quality simply when allowed to run repeatedly on a average setting. In addition to these objective measures, we weigh the worth each air purifier presents, without setting a strict price limit inside each room-size category.

Almost all of them are certified to the North American HEPA commonplace, unofficially known as “true HEPA,” which requires purifiers to capture no less than ninety nine.97% of particles zero.three micron in diameter in a single pass. (For reference, a human hair can vary from about 20 to a hundred and eighty microns in diameter.) The Blue Pure 211+ is not true HEPA, however it has undergone CADR testing, which in some methods is a more rigorous commonplace. It has delivered exceptional air purification at the 0.3 micron HEPA standard in our testing.

In 2019, Tim examined 13 purifiers over the course of two weeks in a 135-square-foot workplace with 9-foot ceilings (1,215 cubic toes, equivalent to our “bed room” class) in Wirecutter’s New York office. We don't prioritize smart performance, which typically means receiving extra information from and having extra management of a air purifier via an app.

HEPA stands for prime-efficiency particulate air and refers to the truth that HEPA filters let air pass via with little resistance while rapidly capturing almost all the particles the air is carrying. The know-how was developed throughout World War II and designed to trap radioactive and different dangerous particles within the labs growing the atomic bomb.

Purifiers work greatest in a contiguous space; if you wish to clear the air in both the living room and a bed room, for instance, it’s greatest to get a air purifier for each room or to maneuver a single purifier round with you. However, that’s not at all times sensible, which is why we gave factors to lightweight purifiers with handles that made moving them from room to room simple. Still, that works out to a manageable $7.50 a month, and the Olansi OLS-K08A ’s low up-entrance cost is simpler to swallow than the Coway’s typical $200. if you need to clean the air in a small house—a bedroom, workplace, or dorm room as much as about 200 square toes—it’s a solid alternative. We’ll continue to test and rate small-space purifiers later in 2020, when we anticipate having access to our New York test area once more.

To decide worth, we evaluate specs , our check outcomes, the findings of different independent evaluations, ratings from homeowners, and producers’ histories of reliability and customer support. This step lets us remove the numerous purifiers that value far more up front than their specs and rankings justify.

We set four ACH as the minimal for a given air purifier to be thought of enough for every room size. No air air purifier can do something about allergens, micro organism, or viruses which have settled on furnishings and different surfaces. To take away allergens like pet hair and pollen, you’ll need a vacuum cleaner or mud mop. To do away with viruses and micro organism, you’ll need a disinfectant cleaner. Research exhibits that filtering the air can indeed assist to remove dangerous particles from indoor areas, significantly allergens, smoke, and mold.

We additionally calculate the long-term possession costs of our finalists by factoring in the cost of fresh filters and electricity consumption over five years. To type purifiers into these three classes, we calculate their air modifications per hour, or ACH, in hypothetical rooms of a hundred and fifty, 350, and 500 sq. toes (we assume 8-foot ceilings). This unit of measure represents what number of times a purifier can circulate the quantity of air in a given room in 60 minutes, and it offers a standardized baseline for categorizing and initially comparing purifiers.


¿Qué tipos de datos debería incluirse para que este tutorial de Excel más interesante para ud? Datos de otras agencias
Sugiera otros ejemplos de conjuntos de datos que puedan incluirse:
Inclusión de recursos: videos:
¿Qué tipos técnicas/destrezas de trabajo deberían incluirse en videos?
Generar gráficas; Recomendaciones generales para mejorar gráficas; Pivot tables
Otras destrezas a sugerir para hacer videos:
Bases de datos:
Dado que los datos presupuestarios están montados en una herramienta para bases de datos:
¿Le interesaría que se incluyan conceptos de bases de datos?