Negative pressure ward

negative pressure ward is a ward in which the air pressure inside the ward is lower than that outside the ward. This is also an important condition that the WHO emphasized when it stipulated the rescue of SARS patients, and now many hospitals in China can meet this level.

Ward Facilities:

negative pressure ward is one in which the air pressure inside the ward is lower than that outside the ward under special equipment.In this way, from the perspective of air circulation, only the fresh air outside can flow into the ward, and the air polluted by patients in the ward will not leak out, but be timely discharged to fixed places through special channels.

The negative pressure isolation ward for infectious diseases uses one set of air supply purification device and two sets of exhaust air purification device. The air supply purification device is composed of the air supply cabinet and the initial effect, medium effect and high efficiency filtration device, the filtration efficiency is 99.99%. (particle size ≥0.3μm).Exhaust air purification device is composed of exhaust cabinet and coarse effect, medium effect filter device, filter efficiency is 99.99%(particle size ≥0.3μm).

main function:

There are two main functions of the negative pressure isolation ward for infectious diseases. One is to use the principle of negative pressure to isolate pathogenic microorganisms. At the same time, the indoor air polluted by patients will be discharged after special treatment, so as not to pollute the environment.Secondly, through ventilation and reasonable air distribution, the concentration of pathogenic microorganisms in the ward can be diluted, and the medical staff can be placed in a favorable wind direction, so as to protect the work safety of medical staff.The negative pressure isolation ward for infectious diseases is generally composed of three parts: ward, buffer room and toilet.

The difference with ordinary ventilation system:

Ordinary ventilation system can only play a cooling role, the virus is easy to circulation inhalation and lead to cross infection.Professional ward ESV ventilation system for air quality requirement is very high, the cleanliness, PM2.5, humidity, temperature and so on all have very high requirements, and even the adjacent two wards for air quality requirements are completely different.The professional ESV ventilation system has the functions of sterilization, anti-bacteria, balance temperature and humidity and oxygen, heat recovery and high efficiency and energy saving, which can effectively guarantee the air quality and safety of the ward.