The World Health Organization (WHO) has changed their advice on face masks .... What are the primary types of face masks and how to Use

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The World Health Organization (WHO) has changed their advice on face masks and now recommend people wear cloth masks in public places where social spacing can be difficult, such as grocery stores and supermarkets.
Does the face mask effective to stop the spread of coronavirus?
There is no face cover can forestall sicknesses by 100 per cent however it decreases the spread of the infection.
The effectiveness of the mask depends on its type, as there are gentle and different sorts made of greater quality materials, and therefore the respiratory system is immune to infection with viruses more than others.
There are two types of masks generally utilized:

N95 Respirators: Doctors and nurses often use it and this type greatly protects against the transmission of the virus.

3M 8511 Respirator, N95, Cool Flow Valve (10-Pack)
POHAKU Disposable Respirator with Elastic Ear Loop 4 Ply Breathable (20 PCS)

surgical masks (Face Masks): Achieves restricted virus protection
50Pcs Disposable Filter Mask 3 Ply Earloop Medical Dental Surgical Hypoallergenic Breathability Comfort Breathable Beauty Medical Dust Mask

Step by step instructions to appropriately wear masks
There are a set of principles developed by the World Health Organization on how to wear masks to reduce the spread of the Coronavirus

• Before applying the mask, clean your hands by washing hands with soap and water.
• Cover your mouth and nose with a mask and make sure there are no gaps between your face and the mask.
• Avoid touching the mask while using it; if you do, clean your hands with soap and water.
• - Replace the mask with a new mask once it becomes wet and does not reuse the masks for single use.
• To remove the mask: remove it from the back (do not touch the front of the mask) and dispose of it immediately in a closed container; clean hands with soap and water.
• Everyone needs to take precautions established by the World Health Organization to help contain the spread of the Coronavirus outbreak.