Product features: clean and smooth, no stain, comfortable without comfort, good air permeability. Structure: made of high quality non-woven fabric. Scope of application: prevention of interspersed infection, suitable for ward, emergency department, infectious ward and other nursing applications. There are countless bacteria, viruses and microorganisms in the atmospheric environment in which we live. They are basically attached to particles larger than 0.5 μ M. for normal people, they will not have any impact, but for susceptible people like patients after chemotherapy, they are fatal. Especially about hematological tumor patients, because of the particularity of hematological tumor, hematological patients are prone to myelosuppression, leucopenia, and secondary infection after chemotherapy. Therefore, to provide a clean environment for susceptible patients has become an important strategy to prevent infection. In order to purify the living environment of patients, laminar flow technology is widely used in foreign countries to disinfect the air in wards, so as to make the medical environment reach a cleaner level. However, in China's medical environment, the technology started late. Nowadays, most hospital operating rooms have achieved laminar flow purification to prevent the incidence of infection in surgery. However, due to the high cost of laminar flow purification and the hospital's limited ability to bear, the general ward has basically no air purification equipment, so our patients with myelosuppression after chemotherapy are prone to attack Infected. Based on the above reasons, in order to better meet the needs of patients after chemotherapy to prevent infection, the Department of Hematology of the hospital has introduced medical grade 100 laminar flow disease bedspread. Its application is convenient and the purification effect is guaranteed. It is reported that when the laminar flow bedspread is used, the air is not only highly clean (the air entering the laminar flow bedspread must be purified by the high-efficiency filter), but also the flow direction of the airflow can be controlled (that is, the laminar flow ultra clean device is used). The positive pressure environment is formed inside the hood, so that the air flow flows from the upper part of the high cleanliness hospital bed to the lower part of the low cleanliness hospital bed In the same direction, and take away and discharge the dust particles (dust particles) and bacteria in the air flow. The air in the bedspread can reach the 100 grade air purification standard (the number of dust particles with a cleanliness of 100 or above is between 350 particles / m3 and 3500 particles / m3, and the number of dust particles greater than or equal to 5 μ m is 0). In this kind of environment, the number of bacteria, viruses and various microorganisms in the air will be far lower than that in the air environment of ordinary ward, and at the same level as the air in ultra clean operating room, which is very suitable for clinical needs of hospitals and greatly reduces the infection rate of patients. With this guarantee, the number of pathogenic bacteria in the air around the hospital bed will be greatly added, the infection probability of patients with high-dose chemotherapy will be greatly reduced, and the utilization rate and turnover rate of beds will be greatly improved, and the large-scale use of antibiotics will be reduced. It can not only reduce the hospitalization expenses of patients, reduce the economic burden of patients and the physical and mental pain caused by infection and fever, and will certainly lose the difference and praise of patients and their families. I believe that with this good assistant, zero infection rate of patients with high-dose chemotherapy is no longer a dream.