To put it simply, a valve adds comfort to your facemask. It does not necessarily assist in protecting you further but rather allows for the flow of air to be more natural and regulated.
Unvalved face masks can often become sweaty, irritating and claustrophobic for some. Those who wear glasses will find them incredibly inconvenient as they will fog up your glasses with each breath.
The small plastic valve fitted to the front or side of the mask allows air to escape from the mask as you breathe out, allow the temperature to remain normal as well as fit comfortably around your face for a prolonged period of time.
How much protection do face masks really offer?
As stated above, the valve has no effect on the protectiveness of the face mask. Alternatively, you should keep an eye out for the FFP rating on facemasks, which has 3 grades of protectiveness.
FFP1 is the lowest respiratory face mask protections on offer, with a score of 4 APF (assigned protection factor), whereas FFPS offers a higher rate of 20 APF.
If you are looking for something with mid-level protection, the standard FFP2 face masks offer 10 APF and are approved by the WHO as well as the UK and EU officials as equivalent to the official N95 masks.
These face masks which protect up to have been selling the fastest, with an APF of 20, these masks can be bought online from us www.maskcoronavirus.co.uk
Must I wear a face mask to protect against coronavirus?
Advice from experts has been mixed, however, it has generally been agreed that wearing a respirator face mask does offer considerably more protection against contracting as well as spreading the coronavirus than not wearing one at all.
Wearing a mask is not a sure guarantee of protecting yourself against COVID-19, however in response to government advice on social distancing, it is clear that wearing a face mask can immensely stop the spread of sneezes and coughs, and limit individuals from touching potentially infected surfaces then transferring that to their mouth, nose, and eyes, as the face masks limits you in doing this.
Washing your hands thoroughly for 20 seconds as well as using hand sanitisers when water is not available. Disinfecting surfaces and wearing disposable gloves can also reduce your chances of contraction, given you are not cross-contaminating.