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DISTINGUISH FRONT AND BACK JM32 HOW TO

Hind feet had pads similar to those found on dogs on their feet.

Forefeet had pads similar to those found on a dog and not hooves.

The diet of Eohippus was largely foliage, fruit, herbs and berries. Eohippus not only developed into Equus, but it also led to a whole family tree of other equine species.Įocene Period around 50 to 55 million years agoĮohippus was the size of a small dog at around 14 inches or 3.2HH. The fossilised remains of Eohippus who is also known as the 'Dawn Horse' or 'Hyracotherium', is considered to be where the horse, or 'Equus', as we know them today, originated from. In general, the side of the white flat mask with the thread is the outside, on the contrary, the side without the thread is the reverse.īecause the outer surface of the mask has a water-blocking function, it is mostly smooth, and the inner layer is mostly made of a material with good breathability, which is close to the skin, which is good for breathing, is more delicate and comfortable.Įveryone must wear a mask in the correct orientation and method, so that the mask can be close to the face, block bacteria and viruses more effectively, and provide us with a better filtering effect.The modern day horse of today is the result of over 55 million years of evolution.

There will be many creases on the mask, the crease facing down is generally the outer layer, and the crease facing up is the inner layer. Generally, the side of the metal strip on the top and protruding outward is facing outward. The mask can be distinguished by the metal strip of the mask. The darker side of the disposable mask is the front side, and the front side should be turned outward when wearing it, while the light-colored side is the back side, which will directly touch the face. The headband of the N95 mask is located on the front (facing outwards), and the headband will press against the edge of the mask when worn. It can be seen that the metal strip of the nose clip is the front side, and the metal strip is facing upwards. Look at the metal strip of the nose clipĬompared with the relatively hidden metal strips of the nose clip for medical masks, the metal strips of the nose clip of the N95 mask are generally exposed. When the N95 mask is opened, the convex side is the front side (facing outward), and the concave side is the back side (facing inward).Ģ. The end of the metal strip with the nose clip (there is a relatively hard horizontal strip when touched by hand) is facing up, and vice versa. In addition to distinguishing the front and back of medical masks, it is also necessary to distinguish the top and bottom. The face of the medical mask with the crease facing down is the front side (outward), and the face with the crease facing up is the reverse side (outward).ģ. When wearing, the darker side is facing outward, and the lighter color is the side that touches the face. Generally, the front side (outward) of medical masks is darker in color, and the reverse side (outwardly) is lighter or white.

DISTINGUISH FRONT AND BACK JM32 HOW TO

So how to distinguish the front and back of the mask?

, So as to better protect people's respiratory tract, make people's body safer and healthier, which also makes the use of masks more important. Generally, a multi-layer filter device is used in masks to filter out polluted gases and small particles in the air. The use of masks plays a good role in protecting people. Masks are a kind of protective tool that plays a filtering role.