There are many "terracotta warriors" in the company， When the sandstorm enters Beijing at night
The dust storm in the past few days more or less made us feel the atmosphere of a foreign country. Good guy, the sky is dark, how serious is it? Visibility is very low, and it is difficult to move forward. When you finally arrive at the company, you will find several more "terracotta warriors".
The Beijing Meteorological Observatory upgraded and issued a yellow warning for strong winds: It is estimated that by 17:00 on the 11th, there will be northerly winds of about magnitude 5 in this city, gusts of magnitude 8 and 9, and local areas can reach magnitude 10.
At present, the north wind in Beijing is blowing strongly, accompanied by sand and dust weather. The minimum visibility in most areas is 1-4 kilometers. Please reduce travel. Be sure to pay attention to wind and sand when going out. In dangerous areas such as temporary structures, pay attention to travel safety.
In particular, pay attention to the protection of the mouth, nose and eyes. In dusty weather, the number of inhalable particles in the atmosphere increases, which can easily cause bronchitis, pneumonia, emphysema and other respiratory diseases after inhalation.
Just when I was lamenting how wonderful this world is, I saw a hot search term "PM 10" on the Internet, which shocked my jaw. I have heard of PM2.5 and PM3.0, but now PM10 comes out directly. Where did this PM10 come from? How can we prevent it?
What is PM10?
The biggest difference between the two lies in the source of pollutants: PM2.5 mainly comes from fine particulate matter from combustion sources, including motor vehicle exhaust, flue gas emissions from power plants and chemical plants, straw burning, etc.; PM10 mainly comes from motor vehicle dust and construction dust , other inorganic dust particles, etc.
In terms of toxicity, the fine particles of PM2.5 per unit mass are far more harmful than the coarse particles of PM10;
In terms of mass concentration, usually PM10 can largely cover PM2.5 concentration;
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In human terms: In fact, it is dusty weather. The particulate matter in the air is relatively large, and it is easy to inhale into the lungs. It can be discharged through nasal mucus and spitting. It will not cause harm to the human body in a short period of time, but it will lead to the appearance of pneumoconiosis in the long run. , with symptoms such as difficulty breathing. From March to April alone, sandstorms have been blown 4 times, each time getting bigger and bigger.
How can we prevent it?
The shape of the air purifier is mainly composed of the chassis shell, motor, air duct, filter, power supply, LCD display, etc.; the motor determines the life, the filter determines the purification efficiency, and the air duct design determines the noise;
To judge whether an air purifier is good or bad, it mainly depends on the CADR value, CCM value, noise and energy efficiency; if the noise and energy efficiency do not meet the standards, this product cannot be put on the shelves; then the core is to look at the CADR value and CCM value.
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Absolutely loving the enthusiasm here! ?? Remember, as Steve Jobs once said, your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. Keep shining and creating impactful work! ? -Steve Jobs
Business Executive with extensive C-suite and Non-Executive experience.
1 年Great post Andy Lau best wishes from the UK. Rob