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Face Masks - a few observations #627122
31/03/20 09:28 AM
31/03/20 09:28 AM
Joined: Sep 2011
Posts: 13,228
Mandello del Lario
Gambalunga Offline OP
Member of the Inner Circle
Gambalunga  Offline OP
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,228
Mandello del Lario
Just at the moment there are several types of face Masks being used and it is worth thinking a little about how they are used and why.

We know that there are very many carriers of the virus who are asymptomatic and the main reason for wearing a mask in public is to stop the spread of the virus. We also know that there may be as many as 10 times the number of people infected than those actually diagnosed (current practice is to only test those with symptoms). Therefore it is important for everyone, regardless of whether they think they are contagious or not, to wear a mask in public in order to stop the exponential spread of the virus. The surgical type mask will do little to stop you getting the virus but will stop most droplets from your breath entering the environment. Conversely the top of the line masks with valves in them will protect you from contagion, if used properly in conjunction with a face shield, but the valve is to allow the wearer's breath to easily exit and could therefore carry the virus from an infected person into the environment. This type of face mask should be used by persons who are not contagious and are exposed to people who are known or suspected to be contagious, in other words medical staff.

We know that the principal method of transmission of COVID-19 is via droplets of moisture in breath, speech, coughs and sneezes. The droplets of moisture in normal breath are very small and completely evaporate in a very short distance, without moisture and organic matter the virus can not survive very long. The larger droplets that are expelled in normal speech, coughs and sneezes may be expelled some distance from the body and fall on the floor or other objects where there may be a a small quantity of organic matter and therefore any virus may survive for an extended period.

So the logic of wearing a mask is to limit the spread of the virus from those already infected to those not yet infected and, in particular, those who may carry the virus into households with at-risk persons. To effectively do this you must wear a mask that does not allow your breath to enter the environment, in other words not the type of mask that has a valve to allow the breath to exit unfiltered.

A face mask should obviously be fitted with clean hands and, if it has a metal strip, that should be modelled to fit closely on the bridge of the nose. From that point on the mask should not be touched for any reason at all or you risk carrying contamination that you have picked up on your hands or gloves to the mask. It should always be kept above the nose and should not be removed for speech, to answer the phone etc. When it needs to be adjusted or removed touch only the elastic straps and not the mask itself and preferably after cleaning the hands. Normally these masks are used only for short periods, at the most a few hours, however with the shortage of supply most people are using the masks multiple times. UV light can be used to decontaminate the masks and several hours of sunlight can also be quite effective. Some masks that are not badly effected by moisture can be either washed or disinfected by a good steaming using a household steam iron. Remember any mask, even one improvised in cotton, is better than nothing if worn correctly. Do not use hand cleaners or gels to clean the mask: there have been several cases of intoxication of people who have used chemical cleaning materials on masks.

All this also highlights the reason behind the recommendations on what to do in the case of a cough or a sneeze. A cough or a sneeze should always be covered to limit the spread of viruses into the environment. If a disposable handkerchief is not available use the inside of the elbow to save transmitting the virus to hands which can then touch and contaminate other objects. Disposable handkerchiefs should be thrown away immediately and cloth handkerchiefs changed and washed as often as possible. Obviously hand washing or cleaning is of the highest importance as is not touching the face.

All the above is a summary of advice given by an epidemiologist, in other words not something dreamed up by an unqualified person such as myself.


Peter

[Linked Image]
Re: Face Masks - a few observations [Re: Gambalunga] #627126
31/03/20 09:39 AM
31/03/20 09:39 AM
Joined: Aug 2013
Posts: 12,556
Salisbury, UK
Peter J Offline
Formerly known as Aldermog
Peter J  Offline
Formerly known as Aldermog
Member of the Inner Circle

Joined: Aug 2013
Posts: 12,556
Salisbury, UK
Peter,

all good information, BUT here in the UK it is virtually impossible to buy masks as all supplies are reserved for front line medical people.
About 10 days ago the local Air Ambulance team were visiting all the DIY shops to buy simple paper/fiber masks as they had none left.

Even on line suppliers are either profiteering, mostly "e-bay thieves", or have no stock.


Peter,
Tarka the 'Otter Mog
2014 Plus 8


Re: Face Masks - a few observations [Re: Gambalunga] #627132
31/03/20 09:56 AM
31/03/20 09:56 AM
Joined: Sep 2011
Posts: 13,228
Mandello del Lario
Gambalunga Offline OP
Member of the Inner Circle
Gambalunga  Offline OP
Member of the Inner Circle

Joined: Sep 2011
Posts: 13,228
Mandello del Lario
Same here Peter, though the situation is improving with dozens of small and large manufacturers switching production to supply all types of necessities. Some fashion workshops that have material on hand have even been making and gifting packs to local hospitals, ambulance, Red Cross etc.

Profiteering is despicable in this situation and there have been cases where shipments and stocks have been sequestrated by authorities. In the early days there were also cases of theft from hospital stock rooms.


Peter

[Linked Image]
Re: Face Masks - a few observations [Re: Gambalunga] #627135
31/03/20 10:04 AM
31/03/20 10:04 AM
Joined: Oct 2008
Posts: 1,544
Kent
Alan Patterson Offline
Talk Morgan Enthusiast
Alan Patterson  Offline
Talk Morgan Enthusiast

Joined: Oct 2008
Posts: 1,544
Kent
Originally Posted by Gambalunga

Profiteering is despicable in this situation......

Worse still the scumbags who are mugging NHS staff for their ID's.


Regards
Alan
AP08 MOG
2016 Plus 4 GDi - Mazda Soul Red Metallic
Re: Face Masks - a few observations [Re: Gambalunga] #627143
31/03/20 10:24 AM
31/03/20 10:24 AM
Joined: Jul 2007
Posts: 16,093
Suffolk
John V6 Offline
Member of the Inner Circle
John V6  Offline
Member of the Inner Circle

Joined: Jul 2007
Posts: 16,093
Suffolk
It seems the NHS are having to up security to protect their PPE.
Can anybody go lower than that.


JohnV6
2006 Indigo Blue Roadster S1
Re: Face Masks - a few observations [Re: Gambalunga] #627152
31/03/20 10:54 AM
31/03/20 10:54 AM
Joined: Aug 2012
Posts: 1,972
atalante83 Offline
Talk Morgan Enthusiast
atalante83  Offline
Talk Morgan Enthusiast

Joined: Aug 2012
Posts: 1,972
Same thing here

Re: Face Masks - a few observations [Re: Gambalunga] #627185
31/03/20 11:53 AM
31/03/20 11:53 AM
Joined: Feb 2016
Posts: 2,600
East Harling, Norfolk UK
Richard Wood Offline
Talk Morgan Expert
Richard Wood  Offline
Talk Morgan Expert

Joined: Feb 2016
Posts: 2,600
East Harling, Norfolk UK
Apparently they don't work so well with beards.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: Face Masks - a few observations [Re: Gambalunga] #627186
31/03/20 11:53 AM
31/03/20 11:53 AM
Joined: Mar 2009
Posts: 7,101
Hampshire
Alistair Offline
Smile, it confuses them
Alistair  Offline
Smile, it confuses them
Talk Morgan Guru

Joined: Mar 2009
Posts: 7,101
Hampshire
Please also be aware that whilst the crime figures for homes are down due to constant occupation the sudden rise in break-in on regional business properties has been noted. If you have a small office that is not manned then a comment has been made to leave the blinds open and remove all valuables to make it clear there is nothing to take and so move them on. I am certain some will disagree and all other approaches are welcomed. It is also worth asking your alarm company what their current levels of cover and and if anything has changed.

The downturn in income is going to cause some interesting things that we had not considered initially I suspect.

Last edited by Alistair; 31/03/20 11:54 AM.

Just time to burn a little more petrol before dinner.
Re: Face Masks - a few observations [Re: Gambalunga] #627191
31/03/20 12:13 PM
31/03/20 12:13 PM
Joined: Dec 2018
Posts: 267
C
ChrisConvertible Offline
Learner Plates Off!
ChrisConvertible  Offline
Learner Plates Off!
C

Joined: Dec 2018
Posts: 267
Thanks Peter, very useful information.

I read that the Australian government had thousand and thousands of mask stock piled for such an epidemic but due to the bushfires and such bad smoke in January decided to distribute them on the basis it should be to stock pile some again before an epidemic comes. Given how bad the smoke was I think they did the right thing at the time but it seems bizarre that such an epidemic would occur so soon after the masks were released for bushfire smoke.

Re: Face Masks - a few observations [Re: Gambalunga] #627272
31/03/20 07:17 PM
31/03/20 07:17 PM
Joined: Jul 2007
Posts: 3,756
Cambridgeshire
A
asbojohn Offline
le Asbo du Bling
asbojohn  Offline
le Asbo du Bling
Talk Morgan Addict
A

Joined: Jul 2007
Posts: 3,756
Cambridgeshire
Be careful a lot of the respirators being sold at the moment aren't fit for purpose.

After watching some of the early TV footage from Italy it was surprising how many front line medics weren't wearing the masks correctly.

Thankfully the NHS have sorted out some online training tools and hopefully they are doing what our local air ambulance has been face fit testing the respirators they have to ensure they fit correctly.


Slowly going green
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