The BI Healthcare BIM002A Medical electronic air-pump mattress & air pump are used in hospital, family, institute and homes for the elderly as they can reduce the work loads of caregivers. This therapy system is designed for those with superficial established pressure sore or with existing tissue damaged, or assessed to be a low risk or be at medium risk, even at very high risk of pressure sore development. Most suitable pressure range for anti decubitus. The smaller pressure range,and the softer mattress will be or not easy to break and have better anti decubitus. Larger air output, fast inflation,when the pressure range is very low 30mmHg,our air output still can keep 5-7liter/min . Low noise, good for patient?s rest.Our breathing is 30decibel, the noise of our pump is only 35 decibel.