The updated air disinfection opportunity is what kind of?
Continuous development of science and technology, and the air disinfection purification machine also has a growing, not ultraviolet (uv) and plasma air disinfection machine from new experience fills the gap between them, let's look at their working principle and advantages and disadvantages.
The principle of uv ultraviolet sterilization is appropriate wavelength of ultraviolet light to destroy microbial DNA in the body (
Or RNA (
The molecular structure of the microbe immediate death or loss of reproductive capacity, thus to achieve the effect of sterilization.
Ultraviolet disinfection effect is affected by relative humidity, when relative humidity is 100%, with ultraviolet irradiation sterilization, 99.
70% of the hay bacillus coli inactivation, and when the relative humidity is 20%, other things being equal, the sterilization rate is as high as 99.
Studies have shown that using ultraviolet irradiation 60 min, to the natural bacteria in indoor air death rate was 94.
Ultraviolet (uv) combined with ultrasonic sterilization method, in the range of allowable error, sterilization rate as high as 100%.
Ultraviolet disinfection has been widely applied in air disinfection, with efficient, convenient, safe and no residual toxicity, no pollution and other advantages, but its sterilization effect is affected by the type and quantity of microbes in the air, temperature, relative humidity, uv light intensity and other factors, and the ultraviolet lamp energy low, penetration is weak, can only be carried out on the surface radiation disinfection, disinfection blind Angle.
Ultraviolet rays will cause certain harm to human body at the same time, disinfection staff need to leave.
But now already had a big change, wind circulation ultraviolet air sterilizer
, this kind of air disinfection equipment disinfection left corner and the staff have the disadvantages of the injury.
Plasma plasma is a kind of is usually generated by the dielectric barrier corona discharge and highly ionized gas, mainly including oxidation material such as active oxygen atoms, molecules and free radicals.
It through the failure surface of the microbial cell membrane protein components to kill bacteria and viruses.
The plasma generated by the dielectric barrier within the medium on staphylococcus aureus and e. coli can efficiently kill except within 20 min.
Using plasma air sterilization machine, boot 60 min, under the condition of no surgery average indoor natural bacteria antibacterial rate was 84.
Under the condition of some run continuously disinfection machine, the number of natural bacteria in air is on the rise, but still remain below the 200 CFU/m3, conform to the requirements of the Ⅱ class environment.
Plasma sterilization time is shorter, and no harm to human body, but from the disinfection effect, according to its poor mobility than ultraviolet ray, can only be fixed point implementation of disinfection, and the disinfection range is small.
Semiconductor plasma air sterilization machine is a combination of independent research and development of patent technology, semiconductor by ultraviolet (uv) light waves reaction, again through the wind circulation way for air purification disinfection.
Under the action of produce plasma ionization in the semiconductor device at the same time, the two together, can achieved both leave no dead Angle and human coexistence state, the device is currently the most widely and general hospital to select the air disinfection equipment, its disinfection effect has been recognized by the general hospital and trust.
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