HOME



picture info

Cloth Facemask
A cloth face mask is a mask made of common textiles, usually cotton, worn over the mouth and nose. When more effective masks are not available, cloth face masks are recommended by public health agencies for disease source control in epidemic situations to protect others from virus-laden aerosols emitted by infected mask wearers' as they breathe, talk, cough, or sneeze. Cloth masks are also used to reduce the risk of transmission to the wearer. Because they are less effective than N95 masks in protecting the wearer against viruses and other airborne particles, they are not considered to be personal protective equipment by public health agencies. Cloth face masks were routinely used by healthcare workers starting from the late 19th century. They fell out of use in the developed world in favor of disposable surgical masks, and respirators with an electret (electrically charged) filter material, but cloth masks persisted in developing countries. During the COVID-19 pandemic, ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Pathogen
In biology, a pathogen (, "suffering", "passion" and , "producer of"), in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a Germ theory of disease, germ. The term ''pathogen'' came into use in the 1880s. Typically, the term ''pathogen'' is used to describe an ''infectious'' microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. Small animals, such as helminths and insects, can also cause or Transmission (medicine), transmit disease. However, these animals are usually referred to as parasites rather than pathogens. The scientific study of microscopic organisms, including microscopic pathogenic organisms, is called microbiology, while parasitology refers to the scientific study of parasites and the organisms that host them. There are several pathways through which pathogens can invade a host. The principal pathways have different episodic time ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Surgical Mask
A surgical mask, also known by other names such as a medical face mask or procedure mask, is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. human nose, nose and human mouth, mouth). This helps reduce airborne transmission of pathogens and other aerosolized contaminants between the wearer and nearby people via respiratory droplets ejected when sneezing, coughing, forceful breathing, expiration or unintentionally spitting when talking, etc. Surgical masks may be labeled as surgical, isolation, dental or medical procedure masks. Although the material of which surgical masks are made will filter out some viruses and bacteria by trapping the aerosol suspended in breathed air, they only provide partial protection from airborne diseases because of the typically loose fit between the mask edges and the wearer's face. Surgical masks are distinct from mechanica ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




How To Wear A Non-medical Fabric Mask Safely - Do's & Don'ts
How may refer to: * How (greeting), a word used in some misrepresentations of Native American/First Nations speech * How, an interrogative word in English grammar Art and entertainment Literature * ''How'' (book), a 2007 book by Dov Seidman * ''HOW'' (magazine), a magazine for graphic designers * H.O.W. Journal, an American art and literary journal Music * ''How?'' (EP), by BoyNextDoor, 2024 * "How?" (song), by John Lennon, 1971 * "How", a song by Clairo from ''Diary 001'', 2018 * "How", a song by the Cranberries from ''Everybody Else Is Doing It, So Why Can't We?'', 1993 * "How", a song by Daughter from ''Not to Disappear'', 2016 * "How", a song by Lil Baby from '' My Turn'', 2020 * "How", a song by Maroon 5 from '' Hands All Over'', 2010 * "How", a song by Regina Spektor from ''What We Saw from the Cheap Seats'', 2012 * "How", a song by Robyn from ''Robyn Is Here'', 1995 Other media * HOW (graffiti artist), Raoul Perre, New York graffiti muralist * ''How'' (TV series ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Towel
A towel () is a piece of absorption (chemistry), absorbent cloth or paper used for drying or wiping a surface. Towels draw moisture through direct contact. Bathing towels and hand towels are usually made of cotton, linen, bamboo and Microfiber, synthetic microfibers. In households, several types of towels are used, such as hand towels, bath towels, and Dishtowel, kitchen towels. Paper towels are provided in commercial or office Bathroom, bathrooms, via a dispenser, for users to dry their hands. They are also used for such duties such as wiping, cleaning, and drying. History According to Middle Ages archaeological studies, "... closely held personal items included the ever present knife and a towel." However, the invention of the towel is commonly associated with the city of Bursa, Turkey, in the 17th century. These Turkish towels began as a flat, woven piece of cotton or linen called a ''peshtamal'', often hand-embroidered. Long enough to wrap around the body, peshtamal were or ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Scarf
A scarf (: scarves or scarfs) is a long piece of fabric that is worn on or around the neck, shoulders, or head. A scarf is used for warmth, sun protection, cleanliness, fashion, religious reasons, or to show support for a sports club or team. Scarves can be made from materials including wool, linen, silk, and cotton. It is a common type of neckwear and a perennial accessory. History Antiquity and the Middle Ages Scarves have been worn since ancient history. In 1350 BC, in Ancient Egypt, Queen Nefertiti is said to have worn a tightly woven headscarf, and a 9th-century BC statue of Ashurnasirpal II depicts the emperor wearing a shawl. In 500 BC in Athens, women wore scarves to enhance their seductive charm; in the same period, Indian women wore them flirtatiously as headgear. During the reign of the Chinese Emperor Cheng, from 259 to 210 BC, scarves were used as military markers to identify the rank of Chinese warriors or their status as officers; many of the Terracotta ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Handkerchief
A handkerchief (; also called a hankie or, historically, a handkercher or a ) is a form of a kerchief or bandanna, typically a hemmed square of thin fabric which can be carried in the pocket or handbag for personal hygiene purposes such as wiping one's hands or face, or blowing one's nose. A handkerchief is also sometimes used as a purely decorative accessory in the breast pocket of a suit; it can then be called a pocket square. A handkerchief is also an important accessory in many folk-dances in many regions like the Balkans and the Middle East; an example of a folk-dance featuring handkerchiefs is the Greek Kalamatianós. Modern usage The material of a handkerchief can be symbolic of the socio-economic class of the user, not only because some materials are more expensive, but because some materials are more absorbent and practical for those who use a handkerchief for more than style. Handkerchiefs can be made of cotton, cotton-synthetic blend, synthetic fabric, silk, o ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

T-shirt
A T-shirt (also spelled tee shirt, or tee for short) is a style of fabric shirt named after the T shape of its body and sleeves. Traditionally, it has short sleeves and a round neckline, known as a '' crew neck'', which lacks a collar. T-shirts are generally made of stretchy, light, and inexpensive fabric and are easy to clean. The T-shirt evolved from undergarments used in the 19th century and, in the mid-20th century, transitioned from undergarments to general-use casual clothing. T-shirts are typically made of cotton textile in a stockinette or jersey knit, which has a distinctively pliable texture compared to shirts made of woven cloth. Some modern versions have a body made from a continuously knitted tube, produced on a circular knitting machine, such that the torso has no side seams. The manufacture of T-shirts has become highly automated and may include cutting fabric with a laser or a water jet. T-shirts are inexpensive to produce and are often part of fast fashi ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Bandana
A kerchief (from the Old French ''couvre-chef'', "cover head"), also known as a bandana or bandanna, is a triangular or square piece of cloth tied around the Human head, head, face, or neck for protective or decorative purposes. The popularity of ''head kerchiefs'' may vary by culture or religion, often being used as a Christian headcovering by men and women of the Anabaptist, Eastern Orthodox, and Plymouth Brethren denominations, as well as by some Orthodox Jewish and Muslim men and women and is also considered a hat. The '' neckerchief'' and '' handkerchief'' are related items. Types Bandana A bandana or bandanna (from Hindi and Urdu, ultimately from Sanskrit बन्धन or bandhana, "a bond") is a type of large, usually colourful kerchief, originating from the Indian subcontinent, often worn on the head or around the neck of a person. Bandanas are frequently printed in a paisley pattern and are most often used to hold hair back, either as a fashionable head accessory ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Air Pollution
Air pollution is the presence of substances in the Atmosphere of Earth, air that are harmful to humans, other living beings or the environment. Pollutants can be Gas, gases like Ground-level ozone, ozone or nitrogen oxides or small particles like soot and dust. It affects both outdoor air and indoor air. Natural sources of air pollution include Wildfire, wildfires, Dust storm, dust storms, and Volcanic eruption, volcanic eruptions. Indoor air pollution is often Energy poverty and cooking, caused by the use of biomass (e.g. wood) for cooking and heating. Outdoor air pollution comes from some industrial processes, the burning of Fossil fuel, fossil fuels for electricity and transport, waste management and agriculture. Many of the contributors of local air pollution, especially the burning of fossil fuels, also cause greenhouse gas emissions that cause climate change, global warming. Air pollution causes around 7 or 8 million deaths each year. It is a significant risk factor for ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Particulates
Particulate matter (PM) or particulates are microscopic particles of solid or liquid matter suspension (chemistry), suspended in the atmosphere of Earth, air. An ''aerosol'' is a mixture of particulates and air, as opposed to the particulate matter alone, though it is sometimes defined as a subset of aerosol terminology. Sources of particulate matter can be natural or anthropogenic hazard, anthropogenic. Particulates have impacts on climate and precipitation that adversely affect human health. Types of atmosphere, atmospheric particles include suspended particulate matter; thoracic and respirable particles; inhalable coarse particles, designated PM, which are granularity, coarse particles with a particle size, diameter of 10 micrometre, micrometers (μm) or less; fine particles, designated PM, with a diameter of 2.5 μm or less; ultrafine particles, with a diameter of 100 nm or less; and soot. Airborne particulate matter is a List of IARC Group 1 carcinogens, Group ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Respiratory Droplet
A respiratory droplet is a small aqueous droplet produced by exhalation, consisting of saliva or mucus and other matter derived from respiratory tract surfaces. Respiratory droplets are produced naturally as a result of breathing, speaking, sneezing, coughing, or vomiting, so they are always present in our breath, but speaking and coughing increase their number. Droplet sizes range from < 1 μm to 1000 μm, and in typical breath there are around 100 droplets per litre of breath. So for a breathing rate of 10 litres per minute this means roughly 1000 droplets per minute, the vast majority of which are a few micrometres across or smaller. As these droplets are suspended in air, they are all by definition s. However, large droplets (larger than about 100 μm, but depending on conditions) rapidl ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

NaCl
Sodium chloride , commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. It is transparent or translucent, brittle, hygroscopic, and occurs as the mineral halite. In its edible form, it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. Another major application of sodium chloride is deicing of roadways in sub-freezing weather. Uses In addition to the many familiar domestic uses of salt, more dominant applications of the approximately 250 million tonnes per year production (2008 data) include chemicals and de-icing.Westphal, Gisbert ''et al.'' (2002) "Sodium Chloride" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim . Chemical functions Salt is used, directly or indirectly, in the prod ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]