thanks bro.. The virus is currently called SARS-CoV-2, and the illness it presents in people is called Covid-19. In this Australian study, they looked at 286 adults in 143 households who had children with influenza-like illness3. read here). Thanks very much John. Beispielsweise, dass insbesondere bestimmte Bevölkerungsgruppen eine Atemschutzmaske âN95, FFP2 oder einen gleichwertigen Atemschutzâ verwenden sollten. Please can I get a PDF version of the article via email? The problem then occurs if we touch the front of the mask and then touch our faces. Hi Barry. Der SPÖ-Gesundheitssprecher Philip Kucher zeigt sich empört: " Es darf nicht sein, dass die Bevölkerung im guten Glauben teure Masken gekauft hat, die nun plötzlich wertlos sind ". I’m so glad I stumbled on it. FFP2-Maske: Setzen Sie auf diese Maske Längst sieht man sie überall, nun werden sie mancherorts Pflicht: FFP2-Masken. Of course, there’s a lag time between demand increasing and supply increasing. The alternative for those who want to keep their beard is to wear a full-face respirator, for which facial hair wouldnât typically cause an issue. Have tried to give some guidance on that subject in the article, but will reflect on how I could improve that further. Joe Rogan Supplements – Brands & Products He Takes – Jan 2021 Update, Dr Rhonda Patrick Diet – What, Why & How She Eats – Jan 2021 Update, Obesity Code Diet Plan – What to Eat, What to Avoid + Sample 7-Day Diet – Jason Fung, Peter Attia Supplements, Diet & Exercise – What He Does & Why. 40 FFP2 Maske - EU CE zertifizierte Masken nach EN149:2001+A1:2009 - Atemschutzmaske Partikelfiltermaske - Hohe Filtration - Versand aus Deutschland 3,9 von 5 Sternen 2.567 35,30 ⬠35,30 ⬠(0,88 â¬/stück) 48,60 ⬠48,60⬠Particularly if we bear in mind duration of contact is a key aspect also. Instead it interacts with the molecules in the air (nitrogen, oxygen, etc), causing it to pinball between them, moving in an erratic pattern. €44,99 Then in terms of an FFP2 rated surgical mask, I don’t believe that can exist. And we should triage our risk strategy to fit this. If you are ok for a 10-15 min conversation? Like, mine are BFE95 but others… Read more », Hi Cindy. Indicating duration of contact was a key facilitator for spread. And my guess, similar % protection to some surgical masks. As a result, myself and others bought into research that suggested the coronavirus could survive for very long periods of time on surfaces. This one-way protection puts others around the wearer at risk, in a situation like Covid-19. ð This 2010 literature review found that âin the presence of facial hair, face seal leakage increases from 20 times to 1000 timesâ. The 80/20 of a surgical mask is a melt-blown layer sandwiched between 2 non-woven fabric layers. Go here to read more. For a longer review on the paper, see this Surrey University post. I hope you can answer some questions I have about mask standards, which I have even though I’ve spent countless, countless, hours reading about masks. This article is by far the the most concise and practical explanation of masks and respirators. That’s a good point around “what is the definition of a surgical mask” – given there is clearly variance in specification. Atemschutzmaske FFP2 5X FFP2 Masken Mundschutz FFP2 EINZELVERPACKT, FFP2 Maske ce Zertifiziert durch Stelle 2797, Mundschutz FFP2 Halbmaske, N95 Maske FFP2 KN95 Mund und Nasenschutz: Amazon.de: Baumarkt Great job, thank u so much. However, in general,… Read more », Excellent article. They also make it hard to touch your mouth or nose whilst wearing them. One hack to protect (and respect) others when wearing a valved respirator is to put a surgical mask or âcloth face coveringâ over the valved respirator, to (partially) filter the out breath. O2 Canada couldn’t pass 1 of the tests to be N95 certified (see their FAQ). Note: Not a Medical Doctor or PhD. â Valved respirators make it easier to exhale air. Wie sie schützen, wie man sie pflegt und wie man Fälschungen erkennt The most commonly discussed respirator type is N95. Therefore it’s important we update our views as more evidence emerges. The comparison table below shows how a regular N95 mask (8210), stacks up against 2 surgical N95 masks (1860 and 1870+). FFP2-Maske ist im öffentlichen Leben ab heute Pflicht Österreich erlebt ab Montag eine neue Masken-Landschaft. However, currently we're under pandemic conditions with shortages on both respirators and the chemicals used for fit testing them. Image from Sui Huang’s blog post on the need for mask usage. I don’t know,… Read more », Below is an excellent study conclusion: “Exhaled moisture does not significantly impact the mechanics of breathing resistance while wearing N95 FFR, SN95 FFR, and N95 FFR/EV over 4 h at moderate breathing volumes”. Then lastly, whilst the respirator covers our face, it makes it very hard for us to touch an object with the virus and transfer it to our mouth and nose. Prior to the outbreak there was already evidence that selenium status plays an important role in immune function. For now, let’s look at the research we do have: Both studies used the same definitions for “normal”, “insufficient” and “deficient” levels of vitamin D: Whilst we still need more research to confirm these results, it seems the potential upside of maintaining normal (but not excessive) vitamin D levels is high, and the downside is low to zero. About valves. My take is that respirators (N95+) will provide a good level of protection for the wearer. Thanks for the message. This is a kind secondary benefit, in addition to the two mentioned above. Ganz anders in Bayern, wo die Maskenpflicht seit 18.01.2021 gilt: die KN95-Maske gilt als mindestens gleichwertig zu einer FFP2-Maske. There were 207 lab confirmed influenza events in the respirator wearing group, compared to 193 in the mask wearing group – a difference that was not statistically significant. Die Filtrationstechnologie filtert 94% (FFP2-Standard) aller Partikel aus der Luft. To pass the test, the mask has to withstand this spray without leaking fluid inside the mask. To mitigate this, regularly use a glycerin based moisturizer with pump or squeeze mechanism. In lieu of that, the below looks at research around the use of surgical masks and N95 masks in the context of influenza, looking specifically at the protection given to the wearers. Despite workers interacting with people in the elevators and lobby, the spread was limited almost exclusively to people who worked on the same floor. Not fitting and wearing respirators correctly. if someone has low levels of circulating vitamin D, they’re more likely to have a severe illness. However, the above at least suggests that a surgical mask may provide more than zero protection – and that’s worth being aware of. – The CDC recommend that if soap and water are not available, use an alcohol-based hand sanitizer with approximately 70% alcohol. In the absence of that article, I can suggest the N95Decon site as an alternative source of information. Hi John again, To clarify my question, it makes sense to me that wearing a cotton mask with an extra pm2.5 filte would give, somehow, better protection than simple cloth masks. Specifically, you have the filtration rate, i.e. The European Safety Fédération has information on its website around fake certificates: https://www.eu-esf.org/covid-19/4513-covid-19-suspicious-certificates-for-ppe, Really useful article with some interesting points to consider, The Health and Safety Laboratory in the UK published a Resource Report: Evaluating the protection afforded by surgical masks against influenza bioaerosols. Regarding a… Read more », Cindy, all great points. The KN95 front sounds like the weakest aspect of it. Using antibacterial wipes or alcohol swabs (typically 70% alcohol) to clean your phone and other items is a good option. One method to check if your nails are too long is by putting them against your palm. In conclusion: we don’t know how much protection surgical masks provide against the novel coronavirus. Interestingly, other items such as vacuum cleaner bags and dish towels showed greater filtration capacity, so why didn’t the study pick them? And then you have the need for a tight fit, to avoid leakage around the edges. Thanks for such a well written and informative article! Sick and tired: does sleep have a vital role in the immune system? Hint: often very good –, How to avoid viruses around us (including cleaning tips) –, How long Covid-19 stays viable and dangerous on surfaces and in the air –. See Table 2 on the NIH site for a list of food sources. For example: As recently as April 28, an international team of researchers led by Surrey University’s Professor Margaret Rayma identified a potential link between Covid-19 cure rate and regional selenium status in China13. And take appropriate caution when interacting with them – sanitizing where possible. First, thanks so much for a great article. Hi john, For further discussion on these 3 points, see the expandable box below: 1. Hi, thanks for the message. I believe you have admirably met your intent of ‘scientific research in an accessible, understandable way’, (I am a medical microbiology scientist in New Zealand), This is a great article! Whilst surgical style masks are not redundant by any means (discussed more below), they aren’t designed to protect the wearer, whilst respirators are. As I say I don’t know if this is how they work but was an added reason I didn’t buy a valved mask just in case. Kudos. Und schützt beides gleich gut? Unlike with vitamin D, where it’s hard to get adequate amounts from our diet alone – with selenium this should be possible. It makes sense to only wear them for protection as a method of last resort – with respirators being the primary choice. For more discussion and details on the subject of respirator filters and brownian motion – see this great post at smartfilters.com. A primary reason for wearing a respirator is to protect from droplets. Gross protection of surgical masks compared to filtering facepiece respirators Prepared by the Health and Safety Laboratory for the Health and Safety Executive 2008: Main Findings This study focussed on the effectiveness of surgical masks against a range of airborne particles. when no alternative to being outside or driving a car. Unfortunately. Surgical masks are permitted. How risky are contaminated objects (fomites)? Gemäß dem Bundesgesetz während der Corona COVID-19-Pandemie, BGBl. Both standards are maintained by CEN (European Committee for Standardization). Thanks for the mesage Rosana! If you don’t mind, I’m going to post this on my blog (just starting it at universalprotectiveproducts.com). Was man beim Tragen einer FFP2-Maske beachten sollte. Hi John, in some countries, Respirators are considered to be used in factory and industry, thus discussing to ban wearing of such respirators during CIVID-19 pandemic. Ein Frau mit FFP2-Maske wartet in einer U-Bahnstation auf die Bahn. Once that's done, you'll be receiving (very occasional) email updates! Entworfen von Booster Thema. The FFP2 standard has a maximum limit for “Total Inward Leakage” of 8%. If you’re concerned you’re not getting enough sunlight, then supplementing vitamin D is a way to mitigate this. Please don’t conflate the comparison to the influenza particle as suggestion that they are comparable illnesses – current data suggests that the coronavirus may have a higher mortality rate. See my brief review of buying them. Can I get it or consult it elsewhere? Safety goggles with a rubber air seal provides a tighter air barrier. Particularly the thickness used, but there’s more to it than just that I think. What we can do is be aware of what research currently says, and err on the side of caution until its been confirmed. For preventative measures you can take as an individual (which also benefits the collective) see this short list of videos by Dr John Campbell: Given that the situation with Covid-19 is evolving rapidly, I’ve decided to add a Change Log for this post. Hi Dave. 12 Vor ein paar Minuten, Jemand hat eine gekauft That is outrageous. Hi. your phone and other items you touch regularly, Bredesen Protocol Book Summary – Including Diet, Supplements, Exercise & Sleep Optimizations, National Instatitute of Infectious Disease, 2020, Is flying safe with the coronavirus? Diagram of melt-blown machinery (left) comes from Erdem Ramazan’s book, and the image of melt-blowing in progress (right) comes from 4FFF on wikipedia. I actually added the bit about the Elipse P3 right when I first wrote the article (Feb 3rd), and have gradually updated the post as I’ve learnt more. However, none of the viruses showed any growth when cultured. Please note that where I link to products, some of these links are affiliate links. Lack of data around age and co-morbidities for cities. Thanks John. accidentally, I saw the article and it was very very helpful to me . Im Nahverkehr und beim Einkaufen wird das Tragen einer Medizinischen Gesichtsmasken (OP-Maske) oder einer FFP2-Maske Pflicht. Fevers – good or bad? Surgical 3-layer masks should be worn with: – metallic wire should sit right above your nose bridge – inner and outer surface cannot be distinguished from their colours – folds… Read more », I am a doctor and for me this is the best article I have read about this topic. surgeon) from spreading their germs when coughing/sneezing/speaking. Was bedeutet KN95? Done right, this results in a fabric composed of tiny filaments. €14,99 We know large droplets play a role in transmission, but it’s not yet clear what role micro droplets play. You cleared up a number of questions in my mind. RE, the information about beards and respirators, can a low, slightly -above stubble length beard affect the seal of a half-mask respirator. Die Bestimmungen sind in der chinesischen Norm GB 2626-2006 (âRespiratory protective equipment. I am a Textile testing lab technician. When I googled that term, and learned about BFE and its various standards. That being said… it’s not clear that… Read more », Great information John. They will open to a wearer’s outbreath, but are forced closed by air coming from the other direction. Aerosole (feinste Verteilung schwebender fester oder flüssiger Stoffe in der Luft). I should have this copied there sometime today or at least have a reference back to your page. Fashion - Atemschutzmaske Wiederverwendbar Schutzmaske mit Nanostoff *Waschbar In essence we need to treat the front of the mask like it's a hazardous material, and always wash hands carefully after touching it. It’s also not (as far as I can tell) N95 certified. OP-Maske, was sind die Unterschiede zu FFP2- oder Alltagsmaske? At one time, reserving the N95 masks for health care workers had some logic, but after months, why is there not enough for everyone? I’m not unlearned in these areas. Wodurch Sie die Passform einstellen können und das trägt zu einem hohen Tragekomfort bei. Although this isn’t totally surprising given how new the virus is. Cloth masks tested had widely varying mean particle removal efficiencies (<30% to 91%), with some cloth masks achieving particle removal efficiencies similar to those of commercial surgical masks. Is that possible? May I ask your opinion on reusable masks like O2 Canada and Woobi mask? Unfortunately those items performed badly in the breathability tests. If we are in the presence of someone sick, who has/might have the coronavirus, it makes sense for them to wear a mask or respirator to reduce their ability to spread the disease. Why was he removed from the site? Ebenfalls im Umlauf befindliche KN95-Masken sind unter gewissen Voraussetzungen ebenfalls zugelassen. Diese Maske ist ☑️Waschbar und selbst nach 30 mal Waschen behält diese Maske noch ihre antibakterielle Funktion. €14,99 Auf den KN95 Masken darf keine CE-Kennzeichnung angebracht sein. Thanks a lot. Whilst we can anticipate surgical masks to be inferior to respirators, the studies above suggest they are not as inferior as one might assume. If N95 masks were common in the general population, wouldn’t that be the best protection for the health care workers because their exposure would be vastly reduced? One of the updates was to warn people about the risk of valved respirators, which are designed to protect the wearer, but don’t protect those around them. Brazilian retired physician. Furthermore, if anyone could buy N95 masks the increased satisfied demand might result in more being produced at a reasonable price. This led to some countries prohibiting outdoor access altogether, save for essential trips such as groceries. Januar 2021 müssen beim Einkaufen oder im Öffentlichen Personennahverkehr in Bayern stark filternde Masken, FFP2 ⦠N95 (USA NIOSH-42CFR84) FFP2 (Europa EN 149-2001) KN95 (China GB2626-2006) P2 (Australien / Neuseeland AS / NZA 1716: 2012) Korea 1. Under ideal situations, one would try on a number of respirators to find one that fits perfectly. Diese Produkte sollen laut dem Gesundheitsministerium aber nur verwendet werden, wenn sie nachweislich in Europa ⦠Image of the melt-blown filaments under microscope come from mdpi.com. The analysis was done during winter however, whilst people were spending less time outdoors. Keeping the blog free of annoying ads, popups and sponsored posts. Don't let wearing a respirator give you confidence to take unnecessary risks. However you want to, no special requirements. Whilst the coronavirus can’t penetrate skin, it can penetrate all exposed mucous membranes, which includes the eyes. Ideal for things like DIY/construction work. Surgical masks are generally speaking a 3-ply (three layer) design, with 2 sheets of “non-woven” fabric sandwiching a “melt-blown” layer in the middle.
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