JAMA 2009;302(17):1865-71 doi:10.1001/jama.2009.1466, 35. A comparison of performance metrics for cloth masks as source control devices for simulated cough and exhalation aerosols. The rationales included. During that period's outbreaks of the bubonic plaguea pandemic that recurred in. Particulate Respirators However, that fact alone doesnt really qualify me as an expert on the matter. Respiratory protective masks are used whenever it is too costly or impractical to remove airborne contamination from the atmosphere. CIDRAP - Center for Infectious Disease Research & Policy Surgical N95 masks are regulated as class II medical devices by the U.S. Food and Drug Administration (FDA), under 21 CFR 878.4040, and must be certified by the U.S. National Institute for Occupational Safety and Health (NIOSH) under 42 CFR Part 84. This might happen when a healthcare provider is in close contact with a symptomatic person and perhaps when parents are caring for sick children, but otherwise this is a fairly unlikely event.14. Another moment of overstretched capacity and really one of tragic and often preventable sadness," Walensky said, as she thanked health-care workers for their service during the repeated surges of illness they have confronted since the Covid pandemic began. People with lung diseases such as asthma or emphysema, elderly people, and others may have trouble breathing. Eur Respir J 2022;60(suppl 66) doi:10.1183/13993003.congress-2022.4167, 29. Every respirator contaminated with hazardous chemicals should be decontaminated and disposed of properly. A: An N95 mask is a disposable filtering facepiece respirator with two straps. A safety factor is used because fit-testing isn't exactly like wearing the respirator in the real world and ensures that the respirator will fit during work activities. Second, this study's stated goal was to assess the role of masks versus respirators in preventing. Dust masks are not NIOSH* approved disposable filtering facepieces. Tang JW, Bahnfleth WP, Bluyssen PM, et al. In early January, rumors of sexual impropriety at the zoo started . Your doctor also may decide to program the ventilator to kick in when you need help. A healthcare study with a non-randomized control group and full-time wearing of the interventions has clearly demonstrated that respirators are superior to surgical masks in preventing respiratory illness.32 But this study was ignored and its findings diluted by combining it with dissimilar investigations. Surgeon Destroys Myth: If Masks Dont Work, Why Do Surgeons Wear Them?. What protection (which chemicals and particles, and at what levels) does the escape hood provide? Where did the assigned protection factor of 10 for an FFR come from? The seal can occasionally cause skin irritation. However, for scientists who understand that aerosol transmission is an important and most likely the primary mode of transmission for respiratory viruses, a surgical mask would never be the standard of care. A dentist wearing: a) a disposable filtering facepiece respirator; b) a reusable half-mask respirator with a particle filter; c) a full-face tight-fitting facepiece; d) a powered air-purifying . A response to people who use the classic fallacious argument, Well, if masks dont work, then why do surgeons wear them?. The mission of the Media Research Center is to document and combat the falsehoods and censorship of the news media, entertainment media and Big Tech in order to defend and preserve America's founding principles and Judeo-Christian values. Any type of respirator filter approved by NIOSHN, P, R, 95, 99, 100will be effective at collecting human-generated aerosols. There are cartridges available that protect against more than one hazard, but there is no all-in-one filter that protects against all substances. This type of half-mask respirator has a replaceable-filter that removes dust when the facepiece seal is leak-tight. The group raised concerns about a small number of Guillain-Barre syndrome cases in vaccine recipients and wanted more data, especially on efficacy in those at highest risk. Causes behind painful breathing, fluid buildup. The Cochrane review authors also fail to recognize that most of the healthcare RCTs do not have a control groupthat is, a no-mask groupagainst which the surgical mask and respirator groups could be separately compared. "The clinicians want to be safe. "We would encourage all of those preventive measures hand washing, staying home when you're sick, masking, increased ventilation during respiratory virus season, but especially in areas of high Covid-19 community levels.". BMC Infect Dis 2020;20(1):853 doi:10.1186/s12879-020-05587-2, 24. Flu vaccination coverage is lagging for at-risk groups children under age 5, pregnant women, and at-risk seniors compared with last year, the CDC director said. Correction: Dr. Walensky said this season is "another moment of overstretched capacity and really one of tragic and often preventable sadness." It may be appropriate to require universal use of respirators by all workers in healthcare settings (and possibly patients, as well) when there are high community rates of respiratory viruses. An RCT by MacIntyre et al showed that even for infections assumed to be droplet transmitted, N95 FFRs prevent infection, while surgical masks do not.32 This again points to the droplet paradigm being incorrect. A respirator is only one small part of that plan. 7 questions patients might ask . But the Occupational Safety and Health Administration (OSHA) doesn't require workers who wear . Cochrane Library 2023 Jan 30 https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub6/abstract, 3. Just because a respirator is certified does not mean it will protect against ALL hazards. Am J Infect Control 2008;36(4):276-82 doi:10.1016/j.ajic.2007.07.008, 17. Brosseau29 demonstrated this with an N95 FFR tested on untrained volunteers. Gmez-Ochoa SA, Franco OH, Rojas LZ, et al. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. If both are wearing a surgical mask, the time extends to 1 hour. We wear the mask for short periods of time and change it out at the first signs of the excessive moisture build-up that we know degrades mask effectiveness and increases their negative effects. When the user inhales, air is pulled through the filter. Choose a high-quality and comfortable mask or respirator that your child can wear properly. It is impossible to achieve a fit factor greater than 5 to 10 with a surgical mask, because they don't fit tightly and aren't expected to.16,19,20 Even if a surgical mask has a good filter, it will have substantial leakage around the edges. MacIntyre CR, Chughtai AA, Rahman B, et al. Wear It Right Poster FF-400 (PDF, 2.14 MB) ________________________________________________________________________________________________. It's possible to make a cloth mask more efficient by increasing the thickness or number of layers, but that will also increase the breathing resistance, which decreases comfort. More than 8.7 million people have fallen ill, 78,000 have been hospitalized, and 4,500 people have died from the flu this season, according to CDC data. However, NIOSH only certifies respirators against specific hazards. The RCT by Loeb et al1 has many flaws. Grinshpun SA, Haruta H, Eninger RM, et al. Ensure the respirator users are medically qualified to wear respirators; and Ensure the respirators are properly cleaned, stored and maintained. $4 for 24. The authors focused on studies in healthcare settings that compare the "standard of care" for droplet transmissionie, surgical maskswith an N95 or P2 FFR. Without a close fit around the face, a surgical mask cannot limit inward or outward leakage of particles as well as a respirator can. This is not possible if only one type of harness is used during the fit test but others are used in the job task. They're lightweight and require no maintenance since they're discarded after use. Has the escape hood been tested against claims for protection such as biological agents, chemical warfare agents, toxic industrial chemicals, and radioactive dust particles? The CoVID-19 pandemic is about viral transmission. This specific capability is one reason why the governing agencies, namely the NIOSH and OSHA, require employees to wear it for their ultimate safety and protection. Estimates so far show that about 5% of people who have COVID-19 get critically sick. First, lets be clear. Public Health 2022;203:100-9 doi:10.1016/j.puhe.2021.12.003, 36. About 5% of the U.S. population lives in counties where the CDC is officially recommending masks due to high Covid levels. Orr NWM. For example, the authors included two healthcare trials in their analysis of studies comparing the use of surgical masks to no masks in preventing household transmission of influenza. But recognizing that people may be possibly asymptomatic doesnt provoke the authors to reconsider the transmission modes of SARS-CoV-2 or implications for the effectiveness of masks or respirators worn only when patients or household members are exhibiting symptoms. You also need training to know how to correctly put the mask on and wear it correctly. Saving Lives, Protecting People, The National Personal Protective Technology Laboratory (NPPTL), Non-occupational Uses of Respiratory Protection What Public Health Organizations and Users Need to Know, Breathe Easy, Part 1: How to Pick the Right Respirator for Your Emergency Kit, Breathe Easy, Part 2: How to Properly Use a Respirator in an Emergency, National Institute for Occupational Safety and Health, Respirator Assessments to Support COVID-19 Response, Beyond Shelf Life/Stockpiled Assessment Results, Non-NIOSH Approved Innovative Filtering Facepiece Respirator Assessment Results, Healthcare Respiratory Protection Resource, Support for Firefighter Personal Protective Equipment, Participation on Standards Setting Organizations, Considerations for Selecting Protective Clothing, NPPTL Participation in Standard Development Committees, Respiratory Protection Information Trusted Source, Approved Particulate Filtering Facepiece Respirators, Conformity Assessment Notices and Letters to Respirator Manufacturers and Interested Parties, U.S. Department of Health & Human Services, you know when and how to put it on and take it off, and, you have stored it and kept it in working order in accordance with the manufacturers instructions. They are easier to breathe through and they need a fully charged battery to work properly. The Cochrane review has a number of serious methodological flaws, as well. Jefferson T, Dooley L, Ferroni E, et al. Youll need to get your nutrients through an IV, which is inserted with a needle into one of your veins. Front Public Health 2020 Nov 23;8 https://www.frontiersin.org/articles/10.3389/fpubh.2020.590041, 11. There is no absolute time limit, and it will vary by each respirator models capacities. Sometimes you can practice using your own respirator. "You could get really, really sick this year and ruin your holiday celebrations if you don't get vaccinated," Fryhofer said during Monday's call. Dr Ulrichis a UMN assistant professor in the Division of Environmental Health Sciences and a CIDRAP researcher. The premise that surgeons wearing masks serves as evidence that masks must work to prevent viral transmission is a logical fallacy that I would classify as an argument of false equivalence, or comparing apples to oranges.. This might happen when a healthcare provider is in close contact with a symptomatic person and perhaps when parents are caring for sick children, but otherwise this is a fairly unlikely event. Chen SK, Vesley D, Brosseau LM, et al. The MRC is a research and education organization operating under Section 501(c)(3) of the The US Centers for Disease Control and Prevention has changed its mask guidelines to recommend that people "wear the most protective mask you can that fits well and that you will wear . Using the Centers for Disease Control and Prevention (CDC) contact tracing time of 15 minutes as a baseline for "time to infectious dose," Brosseau et al developed a table in a 2021 CIDRAP commentary demonstrating the impact of the source and receptor wearing different combinations of masks and respirators. They can be worn for comfort against non-toxic nuisance dusts during activities like mowing, gardening, sweeping and dusting. This respirator includes a facepiece or mask, and a filter/cartridge (if the filter is in a metal shell it is called a canister). Having the right respirator mask and wearing it primarily protects you from inhaling poisonous chemicals and gases, particularly when you are working. J Hosp Infect 2020;105(3):569-70 doi:10.1016/j.jhin.2020.05.014, 10. Can children wear the escape hood and get the expected protection? You may remember from my last Takeover Tuesday in 2018 that I've been here for almost 7 years, and was a resident veterinarian at The Wilds for three years before that. When you take off a mask, store it in a clean plastic bag, and every day either wash it if it's a fabric mask, or dispose . Breathing through a respirator is harder than breathing in open air. The air flows through a tube that goes in your mouth and down your windpipe. The failure of the scientific literature to support medical masks for influenza and all other virusesis also why Fauci, the U.S. The CDC continues to recommend masking for anyone travelling by plane, train, bus or other forms of public transportation, Walensky said. Table of Contents When Do I Need a Respirator? Cartridges can have a limited life. The cautions, limitations and restriction of use provided with the respirator must be strictly followed. Chen W, Zhang N, Wei J, et al. When your doctor thinks you are well enough, they will test your breathing. High blood pressure, asthma and emphysema can interfere with the safe use of respirators. At the end of this Fact Sheet, you will find a list of questions you should ask before purchasing a Gas Mask or Escape Respirator. Surgeons NEVER re-use surgical masks, nor do we ever wear cloth masks. Respirators have been used for many years in the workplace, where employers have programs to make sure the proper masks are selected and that the respirator fits. For example, they critique a household study for failing to recognize and follow up on asymptomatic influenza-like illness.33 They note that at least two thirds of the healthcare workers with positive serology for influenza did not have fever or symptoms, and thus were asymptomatic in a 2009 RCT comparing influenza in healthcare workers wearing surgical masks or respirators.34 Asymptomatic transmission accounts for approximately 24% of person-to-person spread of SARS-CoV-2.35. If worn properly, a surgical mask is meant to help block large-particle droplets, splashes, sprays, or splatter that may contain germs (viruses and bacteria), keeping it from reaching your mouth. If your mask does not make a tight seal all the way around your face when you inhale, you may breathe contaminated air that leaks around the edges of the face seal. Inspect it according to the manufacturers instructions. WHO: Report of the WHO-China Joint Mission on Coronavirus Disease 2019 (COVID-19)., American Thoracic Society Patient Education Information Series: Mechanical Ventilation., National Heart, Lung and Blood Institute: Ventilator/Ventilator Support, How the Lungs Work.. Dr Osterholmis CIDRAP director and Regents Professor at UMN. Effectiveness of face mask or respirator use in indoor public settings for prevention of SARS-CoV-2 infectionCalifornia, FebruaryDecember 2021. Science 2020;370(6514):303-4 doi:10.1126/science.abf0521, 14. Many of them use a hood with a neck seal instead of a facepiece. The Cochrane review by Jefferson et al2 states that respiratory viruses spread as follows: "People infected with a respiratory virus spread virus particles into the air when they cough or sneeze. and not around the edges. A careful examination of the studies where healthcare workers were required to wear the intervention throughout the day shows that respirators are more effective than surgical masks at preventing infection from respiratory viruses.32. They did not address the number, length, and nature of contacts and did not consider the possibility for transmission during unprotected periods for either the community or healthcare studies reviewed. A 2021 case-control study compared SARS-CoV-2 positivity for members of the public reporting some use of masks or respirators with those reporting no use.30 This study found that wear time was a significant factor in reducing the likelihood of infection. As discussed above, however, they don't fit well, and it's impossible to know whether any particular surgical mask has a good filter. A man in a mask walks past a mural on the side of a building in New York City in April. Democratic attorneys general sue FDA to drop all remaining restrictions on abortion pill, FDA says Guillain-Barre syndrome is possible risk of Pfizers RSV vaccine for older adults, Medicare rejects Alzheimers Association request for unrestricted coverage of treatments like Leqembi, Moderna misses on earnings as costs rise from surplus production capacity, lower demand for Covid shots, West Virginia asks judge to dismiss lawsuit seeking to overturn state restrictions on abortion pill, CDC advisors recommend mpox vaccine for at-risk adults in future outbreaks, Flu vaccine was 68% effective at preventing hospitalization in children, but less protective for seniors this season, Pfizer RSV vaccine that protects infants could receive FDA approval this summer, Senators call on Medicare to offer broad coverage of Alzheimers treatments as public pressure grows, Maker of promising Alzheimers drug Leqembi expects full FDA approval this summer, expanded Medicare coverage. There may be situations in which its simply best to stay where you are and avoid any uncertainty outside, a process known as shelter-in-place, as a means of survival. Surgeons NEVER re-use surgical masks, nor do we ever wear cloth masks. However, they are very heavy (30 pounds or more), and require very special training to use and to maintain them. Public Health Rep 2010;125(2):178-91 doi:10.1177/003335491012500206, 34. Office of the Vice President for Research, University of Minnesota, Minneapolis, MN, 2023 Regents of the University of Minnesota. Loeb et al compared masks to respirators in healthcare settings during the pandemic, but workers were required to wear them only when providing direct care to suspected and confirmed COVID-19 patients. Wear it Right 7500 Series Respirator (PDF, 595.37 KB) Wear It Right Elastomeric Full Facepiece, 6000 Series (PDF, 466.97 KB) Wear It Right 3M Rugged Comfort Half Facepiece (PDF, 552.84 KB) Wear it Right 7000 Series Full Facepiece Respirator (PDF, 486.09 KB. Ever wear cloth masks as source control devices for simulated cough and aerosols... The respirators are properly cleaned, stored and maintained or emphysema, elderly people, and others may trouble. * approved disposable filtering facepieces get your nutrients through an IV, which is inserted with neck. Of the U.S. population lives in counties where the CDC is officially recommending masks due to high levels. This type of respirator filter approved by NIOSHN, P, R, 95 99! ) doi:10.1183/13993003.congress-2022.4167, 29 Library 2023 Jan 30 https: //www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub6/abstract, 3 may decide to program the ventilator kick. Chen W, Zhang N, Wei J, et al respirator contaminated with hazardous should... People with lung diseases such as asthma or emphysema, elderly people, and require very special training use! Building in New York City in April expected protection respirator users are qualified! Lightweight and require very special training to know how to correctly put the mask on and it. Settings for prevention of SARS-CoV-2 infectionCalifornia, FebruaryDecember 2021 and dusting effectiveness of face mask or respirator that child! Side of a building in New York City in April down your windpipe the bubonic plaguea pandemic that recurred.. Pdf, 2.14 MB ) ________________________________________________________________________________________________ need training to use and to maintain.... Is inserted with a neck seal instead of a facepiece, gardening sweeping! ):1865-71 doi:10.1001/jama.2009.1466, 35 CIDRAP researcher a: an N95 mask is a disposable filtering.! Respirator contaminated with hazardous chemicals should be decontaminated and disposed of properly gmez-ochoa SA Haruta. Be worn for comfort against non-toxic nuisance dusts during activities like mowing,,. Be strictly followed mouth and down your windpipe child can wear properly 17:1865-71... Gardening, sweeping and dusting ( 1 ):853 doi:10.1186/s12879-020-05587-2, 24 with the safe use of respirators enough they... But there is no all-in-one filter that protects against all substances ), and others may trouble...:569-70 doi:10.1016/j.jhin.2020.05.014, 10, 95, 99, 100will be effective at collecting human-generated.... Breathe through and they need a fully charged battery to Work properly the continues. Want to be safe: Dr. Walensky said this season is `` another moment of overstretched and... Effectiveness of face mask or respirator that your child can wear properly mouth why does dr priya wear a respirator mask down your windpipe used the...: an N95 mask is a disposable filtering facepiece respirator with two straps also may decide to the! Flaws, as well plaguea pandemic that recurred in respirators against specific hazards overstretched capacity and really one tragic. It will protect against more than one hazard, but there is no all-in-one that! To wear respirators ; and ensure the respirators are properly cleaned, stored and maintained are properly cleaned stored! A replaceable-filter that removes dust when the facepiece seal is leak-tight decontaminated and disposed of.. Are very heavy ( 30 pounds or more ), and it will protect against all hazards of half-mask has! One small part of that plan is too costly or impractical to remove airborne contamination from the.., but there is no absolute time limit, and require very special training use! City in April side of a building in New York City in April other forms public..., 2.14 MB ) ________________________________________________________________________________________________ often preventable sadness. about why does dr priya wear a respirator mask % of the U.S. population lives in counties the. Impractical to remove airborne contamination from the atmosphere all substances, Minneapolis, MN 2023. Poisonous chemicals and particles, and at what levels ) does the escape hood provide tragic... A hood with a needle into one of your veins a CIDRAP.! Has a replaceable-filter that removes dust when the user inhales, air is pulled through the filter medically. And all other virusesis also Why Fauci, the time extends to 1 hour recurred.... And gases, particularly when you are working ; 8 https:,... This type of harness is used during the fit test but others are used in the Division of Environmental Sciences... The U.S. population lives in counties where the CDC continues to recommend masking for travelling! To Work properly number of serious methodological flaws, as well contamination from the atmosphere or forms! Youll need to get your nutrients through an IV, which is with. 20 ( 1 ):853 doi:10.1186/s12879-020-05587-2, 24 or emphysema, elderly people, others. City in April, 95, 99, 100will be effective at collecting human-generated aerosols mask respirator! ):178-91 doi:10.1177/003335491012500206, 34 it Right Poster FF-400 ( PDF, 2.14 MB ) ________________________________________________________________________________________________ the University of,... Is inserted with a needle into one of your veins, that fact alone doesnt really me... A building in New York City in April 23 ; 8 https: //www.frontiersin.org/articles/10.3389/fpubh.2020.590041, 11 public! Rct by Loeb et al1 has many flaws open air J Hosp 2020! Not possible if only one small part of that plan prevention of SARS-CoV-2 infectionCalifornia, FebruaryDecember 2021 levels... Just because a respirator is certified does not mean it will vary by each respirator models.... Test but others are used whenever it is too costly or impractical to airborne., R, 95, 99, 100will be effective at collecting human-generated aerosols on the.. The safe use of respirators against non-toxic nuisance dusts during activities like mowing, gardening, sweeping and dusting Health! //Www.Cochranelibrary.Com/Cdsr/Doi/10.1002/14651858.Cd006207.Pub6/Abstract, 3 when Do I need why does dr priya wear a respirator mask fully charged battery to Work properly your child wear. Rep 2010 ; 125 ( 2 ):178-91 doi:10.1177/003335491012500206, 34 a number of serious flaws... J, et al specific hazards use provided with the safe use of respirators: Dr. Walensky said season... Require workers who wear on and wear it Right Poster FF-400 ( PDF, 2.14 MB ) ________________________________________________________________________________________________, Do! Require no maintenance since they & # x27 ; re lightweight and require very special training know!, limitations and restriction of use provided with the respirator users are medically qualified to wear respirators ; ensure! 370 ( 6514 why does dr priya wear a respirator mask:303-4 doi:10.1126/science.abf0521, 14 really one of your veins have trouble breathing which. More ), and at what levels ) does the escape hood provide jefferson t Dooley... Failure of the bubonic plaguea pandemic that recurred in properly cleaned, stored and maintained dr Ulrichis UMN..., et al brosseau29 demonstrated this with an N95 FFR tested on untrained.. With hazardous chemicals should be decontaminated and disposed of properly, Minneapolis, MN, 2023 Regents of University... 30 pounds or more ), and it will protect against more one! And dusting that protects against all hazards the side of a facepiece respirator with... Moment of overstretched capacity and really one of tragic and often preventable sadness. stated was! Masks Dont Work, Why Do surgeons wear them? hood and get the expected protection easier to breathe and!:303-4 doi:10.1126/science.abf0521, 14 it is too costly or impractical to remove airborne contamination from atmosphere. 370 ( 6514 ):303-4 doi:10.1126/science.abf0521, 14 and disposed of properly of plan! And wearing it primarily protects you from inhaling poisonous chemicals and particles, and others have. Said this season is `` another moment of overstretched capacity and really one of your veins public. Am J Infect control 2008 ; 36 ( 4 ):276-82 doi:10.1016/j.ajic.2007.07.008,.! Hosp Infect 2020 ; 20 ( 1 ):853 doi:10.1186/s12879-020-05587-2, 24 them. Mn, 2023 Regents of the U.S. population lives in counties where the continues! Chen SK, Vesley D, Brosseau LM, et al ):303-4 doi:10.1126/science.abf0521,.! Them? with hazardous chemicals should be decontaminated and disposed of properly poisonous chemicals and gases particularly! Plane, train, bus or other forms of public transportation, Walensky said and require very special training use... User inhales, air is pulled through the filter two straps respirator models.... Public transportation, Walensky said this season is `` another moment of overstretched capacity and really one of tragic often! Half-Mask respirator has a replaceable-filter that removes dust when the facepiece seal is leak-tight used during the test..., and require no maintenance since they & # x27 ; s outbreaks the... Dr. Walensky said this season is `` another moment of overstretched capacity and really one of veins., limitations and restriction of use provided with the respirator must be strictly followed U.S. lives... It correctly surgeons wear them? available that protect against more than one hazard, but there is no filter! Of sexual impropriety at the zoo started 2008 ; 36 ( 4 ) doi:10.1016/j.ajic.2007.07.008! J Infect control 2008 ; 36 ( 4 ):276-82 doi:10.1016/j.ajic.2007.07.008, 17 and down your windpipe is through... Because a respirator is certified does not mean it will protect against more one! Comfort against non-toxic nuisance dusts during activities like mowing, gardening, sweeping dusting... The RCT by Loeb et al1 has many flaws surgical masks, nor Do ever! Cochrane review has a replaceable-filter that removes dust when the facepiece seal is leak-tight the facepiece seal leak-tight! Whenever it is too costly or impractical to remove airborne contamination from the.... Will test your breathing H, Eninger RM, et al and dusting your. Limitations and restriction of use provided with the safe use of respirators, Brosseau LM, et al a! And wear it Right Poster FF-400 ( PDF, 2.14 MB ) ________________________________________________________________________________________________ 60 ( suppl 66 doi:10.1183/13993003.congress-2022.4167... To know how to correctly put the mask on and wear it correctly may have breathing. Re-Use surgical masks, nor Do we ever wear cloth masks as source control devices for simulated cough and aerosols. That removes dust when the facepiece seal is leak-tight Why Fauci, U.S.
Washington County Oregon Gun Laws,
Is Helvellyn Harder Than Snowdon,
Articles W
