The reason for using face coverings
Coronavirus (COVID-19) can spread predominantly by droplets from coughs, sneezes and speaking. These droplets can also be picked up from surfaces, if you touch a surface and then your face without washing your hands first. This is why social distancing, regular hand hygiene, and covering coughs and sneezes is so important in controlling the spread of the virus.
The best available scientific evidence is that, when used correctly, wearing a face covering may reduce the spread of coronavirus droplets in certain circumstances, helping to protect others.
Because face coverings are mainly intended to protect others, not the wearer, from coronavirus (COVID-19) they are not a replacement for social distancing and regular hand washing. It is important to follow all the other government advice on coronavirus (COVID-19) including staying safe outside your home. If you have recent onset of any of the most important symptoms of coronavirus (COVID-19):
a new continuous cough
a high temperature
a loss of, or change in, your normal sense of smell or taste (anosmia)
you and your household must isolate at home: wearing a face covering does not change this. You should arrange to have a test to see if you have COVID-19.
When to wear a face covering
In England, you must by law wear a face covering in the following settings:
Shops and Supermarkets as of 24 July 2020
Measures can be taken if people do not comply with this law. Transport operators can deny service or direct someone to wear a face covering. If necessary, the police and Transport for London authorised officers can issue fines of £100 (halving to £50 if paid within 14 days). Shops and supermarkets will be expected to encourage compliance with the law (as they would do more generally) and can refuse entry. In both cases, if necessary, the police have the powers to enforce these measures, including through issuing a fine of £100 (halving to £50 if paid within 14 days).
You are also strongly encouraged to wear a face covering in other enclosed public spaces where social distancing may be difficult and where you come into contact with people you do not normally meet.
Maintaining and disposing of face coverings
Do not touch the front of the face covering, or the part of the face covering that has been in contact with your mouth and nose.
Once removed, store reusable face coverings in a plastic bag until you have an opportunity to wash them. If the face covering is single use, dispose of it in a residual waste bin. Do not put them in a recycling bin.
Make sure you clean any surfaces the face covering has touched using normal household cleaning products. If eating in a restaurant, for example, it is important that you do not place the face covering on the table.
Wash your face covering regularly and follow the washing instructions for the fabric. You can use your normal detergent. You can wash and dry it with other laundry. You must throw away your face covering if it is damaged.
For more information please visit the government website https://www.gov.uk/government/publications/face-coverings-when-to-wear-one-and-how-to-make-your-own/face-coverings-when-to-wear-one-and-how-to-make-your-own