What masks are considered to be standard?

A quality mask helps you breathe fresh air even though you live in a place where super air is polluted with all kinds of invisible viruses, bacteria or dust.

Ordinary masks cannot filter dirt

In addition to CO ₂ or tobacco smoke, another type of pollution is often mentioned in the results of PM10 fine dust and PM2.5 ultra-fine dust. in micrometers, of course cannot be seen with the naked eye and can invade into cells, hindering physical activity.

In the short term, fine dust "squeezes" into the lungs, causing blood to not get oxygen to feed the body, leading to consequences such as headaches, dizziness, and sluggish body.

In the long term, fine dust and ultra-fine dust often carry metal ions into the body, poisoning the respiratory system, and destroying the body's immune system.

The enlarged image shows that the size of PM10 and PM2.5 dust is dozens of times smaller than the surface of the hair.This is the reason why this dust becomes dangerous, because it can pass through ordinary fabrics, go straight to the lungs.

When the air becomes polluted, human resistance deteriorates because of the weather, finding a safe respirator, filtering micro dust becomes an essential need. Facemasks that are not simply shading to darken or filter the dust particles to the extent that the eyes are often visible - choose a safe type to repel toxic agents, even if they are nearly invisible. form.

The criteria of a safety mask

Dr. Richard Saint Cyr, who works at Beijing Family Health Organization, said there are four factors that determine the effectiveness of a mask: material, face-to-face hugging, ventilation and appraisal. beautiful

Material

Material layers will determine the ability to filter small substances to the size of the mask. Medical masks or fabric masks cannot guarantee the filtering of small sized dust such as PM10 or PM2.5.

Instead, the American Institute of Occupational Safety and Health Institute recommends that you choose certified masks for small-scale dust filtering, such as N95, N99.

1. By N95 standard , this type of respirator filters 95% of all dust in the air, even ultra-fine dust.
2. The N99 standard filters 99% of airborne substances, preventing almost all types of bacteria and viruses.

A safe respirator needs to filter almost thoroughly PM10 fine dust, PM2.5 ultrafine dust and bacteria, viruses that are harmful to health.

The hug close to the face

Benjamin Barrett - Professor of Air Quality Science at King's College, London, England, advises on CNN, the face fit is the most important criterion of a mask, deciding whether the air is dirty can 'naturally' get inside without going through the filter.

Dr. Saint Cyr also affirmed that most masks are sold in non-standard convenience stores close to the face.'One worrying thing is, everyone wears them, walking everywhere with the belief that they are being protected.'

According to experts, a safety mask needs to embrace the face, allowing a maximum of 5% of the air to pass through the gaps.

Transparency and aesthetics

In addition, two other factors determine whether or not users are willing to wear masks are the aesthetics of the mask and its aesthetics.

If a secret mask, the air is difficult to pass through, the breathing of the user is difficult, especially for those who are outdoors, the respiratory system is very active.

In addition, a mask also needs to be highly aesthetic, meaning the structure is not too strange, beautiful colors and textures. This makes users feel comfortable, confident and willing to wear masks everywhere.