1、Pressing depth：30 ㎜～65 ㎜ adjustable，one type:5 ㎜，error：±2 ㎜；
2、Pressing release rate：1：1 ；
3、pressure relief valve：0.65Mpa；error：±0.12Mpa；
4、Pressure of gas road is no less than 1Mpa；
5、 Ventilation quanity：500ML no adjust，error:±10%；
working pressure：≤816.4N ；

6、input power（DC）：≤17W； AC:≤54W；
7、Press the ventilation ratio：30：2 continuously adjustable;，error：±1 time；
8、Pressing frequency： 100times/ min，110times/ min，120times/ min error：±1 time;
9、The fastness of fastening band fastness is not less than 100N;
10、The thickness range of patients was 155 to 305MM.
11、The pressure is not enough to alarm, the pressure depth is reduced automatically, and the manual
recovery after air pressure recovery must be deep.
12、Electricity, according to the low voltage alarm, start the suspended function;

13、Default mode：Press the ventilation ratio: 30: 2，press depth 30mm，press frequence 100 pcs/min
Ventilation quanity 500ML
14、Safety requirements refer to medical electrical appliances safety standard GB 9706.1-2007,
electromagnetic compatibility standard YY05052012;
15、Earthquake Resistance
16、drop resistance
17、The enclosure protection level is IP55 (dustproof and water spray);
18、noise≤70dB ；
19、Working environment ： a)Temperature：-20℃~55℃；
b)Relative temperatur：10%~90%; 
c)Atmospheric pressure：500hPa~1060hPa.