The new coronavirus-infected pneumonia has attracted attention from all walks of life, so much so that the older generation, who never wore masks, also consciously wore and refused to visit friends and relatives for the Spring Festival gathering type of activities, and stayed at home to wait for the end of the epidemic.
When everyone is responding to the call to stay at home at the same time, there are some companies and people have chosen to "retrograde" for the hospital in the infected area to produce a large number of protective masks and other materials, so that we can see in the relentlessness of the virus, "a party in trouble, eight parties to support" the glory of human nature, for the people in the infected area is still in the cold winter and the sick to bring a bit of warmth.
"2019 - the new coronavirus" is like a rampaging bandit, through the mucous membranes into the body, and gradually into the body of various organs and tissues, destruction of a pass; even more incredible, even a gust of wind can bring the virus to itself, this phenomenon in the side of the infected person is particularly obvious. In hospitals there is protective equipment and disinfection of the environment, but in transit there is a real danger. That's where a giant "protective mask" comes in, in the form of a negative-pressure ambulance.
In the National Health Commission's latest "new coronavirus infection of pneumonia case transfer program (trial)" clearly stipulates that the new coronavirus infection of pneumonia case transfer work, as far as possible, the use of negative pressure ambulance.
What is negative pressure, is the use of technical means, so that the air pressure inside the car is lower than the outside atmosphere, equivalent to an isolation warehouse. Air in the free flow can only flow from the outside of the car to the car, and negative pressure can also be harmless air inside the car after discharge, doctors and patients in the absolute isolation of the state, but at the same time can let each other enjoy a cleaner air, to avoid more people infected, in the rescue and transit of infectious diseases and other special diseases can minimize the chances of cross-infection of more people, is the fight against the epidemic of the focus of the demand for materials It is one of the key demanded materials in this fight against the epidemic.
The emergency vehicles are equipped with biosafety negative-pressure isolation stretchers, respirators, defibrillators, electrocardiographic monitors and a full set of rescue equipment, ultraviolet disinfection lamps, central oxygen interfaces, and so on, to fully protect the front line of epidemic prevention in every aspect.
Jiangling negative pressure emergency vehicle, for example, it can do every hour for 20 times, negative pressure value stable control in -10Pa to -38Pa between the filtration separation rate of 99.9%, so that inside and outside of the car personnel have the highest level of protection, which is equivalent to a costly "protective mask".
Why do I say this, first look at the world's most advanced high-risk virus laboratory --- Jean B. Mérieux BSL-4 laboratory. Mérieux BSL-4 laboratory to know (China's Wuhan P4 laboratory construction is also used in this way). Some people call the BSL-4 lab the "Devil's Lab", not only because it contains viruses that can destroy the world, but also because its air-conditioning system is as strong and powerful as the devil.
It is important to know that the temperature and humidity of the air entering the lab are pre-set, and the degree of filtration reaches 99.999%, which ensures that the air is circulated many times an hour throughout the environment. Directional negative pressure to reach negative 40 Pa, so that the flow of laboratory air, can only be through the high-efficiency filter from the outside in, and to ensure that the air in the laboratory does not flow outward. Researchers in and out of the laboratory need to go through layers of disinfection and screening, the chances of the virus being left out is almost 0, which is why Shi Zhengli categorically said that the outbreak virus non-laboratory left out the best evidence.
Knowing that the Jean B. Mérieux BSL-4 laboratory of the power of the right, is not to understand the power of negative pressure emergency vehicle, which plays a role in the epidemic is undoubtedly great. We also hope that the country will soon develop effective drugs to save more lives.
This article comes from the author of the automobile home car family number, does not represent the views of the automobile home position.