Bụi mịn PM 2.5 là gì?

Recently, the phenomenon of hot weather is at a high level causing many bad effects on your health. Ho Chi Minh City is considered the area with the highest amount of fine dust, causing the phenomenon of fog layers in the air. Our skin is affected by many different factors, but few people see invisible agents such as ultrafine dust. 

So what kind of dust is considered superfine dust? What are the dangers that ultrafine dust brings? The following article will answer your questions.

Ultra-fine dust forms a mist in the air

1. What is PM2.5 fine dust?

Bụi là hỗn hợp gồm các hợp chất rắn hoặc lỏng có trong không khí. Các hợp chất có trong bụi được gọi chung là Particulate Matter – ký hiệu PM. Trong đó, các hạt bụi có nhiều kích thước siêu vi được biết đến nhiều nhất như PM2.5.

Bụi mịn PM2.5 là những hạt bụi li ti có với kích thước 2,5 micron trở xuống – nhỏ hơn sợi tóc con người khoảng 30 lần. Bụi PM2.5 được hình thành từ các chất như Nitơ, Carbon và các hợp chất kim loại khác. 

PM2.5 super fine dust compared to human hair size

2. Where does fine dust come from?

2.1 Natural

• Wildfires: From large forest fires mostly caused by sudden climate change. When the climate changes suddenly, a large amount of dust will be released into the environment, leading to a seriously affected and polluted air environment.
• Natural dust: Desert, and sandy soil, ... are one of the major factors that create a large amount of fine dust dispersed in the air, polluting the air.
• Time of season change: In the last months of the year, fog will often appear in the air. The dense layers of fog will accumulate fine dust and cannot escape, at this time the air will be filled with a super-thick layer of fine dust.

2.2 Artificial

• Transportation: Personal vehicles also produce a certain amount of smoke, dust, and dust carried during travel, eroding the road surface to the air. Thereby increasing the amount of large fine dust causing air pollution.
• Daily life: The use of coal stoves, wood stoves, and oil stoves for cooking also produces a certain amount of smoke, increasing fine dust in the air.
• Industrial production: Factories, plants, and industrial zones often emit a large amount of smoke into the environment and the air, thereby increasing the amount of fine dust.
• Garbage: Domestic and industrial waste produce bacteria and fine dust, thereby affecting the clean air you breathe every day.
• Construction: The process of building apartments, buildings, bridges, and roads is also a cause of fine dust in the environment, seriously affecting the air.
• Agriculture: Transporting and burning rice straw produces toxic fumes, affecting the flow of clean air in the environment.

3. Invisible harm from fine dust

Bụi mịn được xem là sát thủ nguy hiểm nhất trong không khí vì khả năng len sâu vào cơ thể, gây bít tắc lỗ chân lông. Khi bụi siêu mịn đã len lỏi vào da bạn, da sẽ trở nên nhạy cảm hơn. Các chức năng da sẽ bị suy giảm, lão hoá nhanh hơn. Tình trạng dễ thấy nhất chính là da bạn sẽ xuất hiện nhiều vết nâu đen, da ngứa ngáy, mẩn đỏ, nổi mụn, … 

How PM2.5 dust enters your body

PM 2.5 dust can absorb toxins and carry bacteria and viruses into the environment. Therefore, when they enter your body, they will release implicit toxins into your body, thereby weakening the immune system. In addition, fine dust PM2.5 brings harmful bacteria to the skin, thereby causing skin allergies, making you feel itchy and uncomfortable. Exposure to a lot of fine dust can also cause diseases such as:

Respiratory diseases: Fine dust in the air will prevent hemoglobin from combining with oxygen, causing cells to lack oxygen, causing irritation to eyes, nose, throat and lungs, coughing, sneezing... and other diseases. respiratory disease. Toxins in superfine dust when entering the human body will cause chronic obstructive pulmonary disease, affecting and making breathing difficult.

Myocardial infarction: In addition to respiratory diseases, fine dust also attacks the alveoli, crosses the blood-gas barrier to enter the circulatory system and causes disease, fine dust can also affect affect the nervous system. Fine dust can also cause normal blood vessel blockages that are not serious to suddenly burst, creating a blockage, causing myocardial infarction.

Severe memory loss: long-term exposure to heavily polluted air accelerates cognitive decline. Air pollution affects brain activity, increasing the risk of stroke and dementia and depression.

4. Protect your health against super fine dust

4.1 Wear a dust mask

Masks are useful items when going out in the current time of heavy pollution. However, ordinary masks do not filter PM2.5 ultra-fine dust particles. To filter these types of dust, we need to wear a specialized mask capable of filtering more than 99% of superfine dust.

With the rampant appearance of poor-quality mask products that do not meet the standards in health protection, NeoVision is considered a safe solution that was chosen by many consumers. NeoVision mask products are not only diverse in design and styles but also highly appreciated for their quality when ensuring the ability to filter ultra-fine dust with a size smaller than PM2.5 over 95% according to the test results at Nelson Laboratories (USA).

Consumers when using NeoVision masks will be completely assured of their ultra-fine dust-proof, anti-bacterial features as well as the ability to prevent polluting chemicals that directly affect human health such as the smell of gasoline, the smell of car smoke when traveling on the road ... in the best way that not all masks can meet. 

4.2 Use an air purifier

Currently, on the market, there are many types of air purifiers capable of filtering bacteria, molds, and allergens, ... especially PM2.5 and PM10 ultrafine dust.

4.3 Change your lifestyle

To limit the harmful effects of air pollution, we should create a habit of cleaning our noses and throat regularly. Combine exercise, sports to improve health, improve resistance and build a full diet including fruits and vegetables containing many vitamins, minerals, protein from meat, fish, eggs and milk. ... at the daily meal.

Wearing a mask is an effective anti-dust solution

For children with weak resistance, it is necessary to remind them to wear a mask every time they go out, give them nutritious food, drink a lot of water, and avoid exposure to dusty, smokey environments. 

NeoVision is committed to bringing quality products that have a real effect in preventing PM2.5 superfine dust to protect users' health in a comprehensive way. Therefore, customers can completely consider using Neovision mask products with carefully tested high-end filters, replacing the habit of using medical masks or cloth masks, which do not bring much effectiveness in protecting health in today's highly polluted environment.