Vitalograph asma-1™是一款简单的家用电子呼吸监测仪，可测量PEF和FEV1，并可与智能手机或平板电脑集成ePRO数据收集。它提供了比机械峰值流量计更高的精度，并消除了纸质记录卡的需要。
| 大小 | 113 x 63S x 48mm |
| 重量 | 55 g网 |
| 显示参数(成人版本) | PEF、FEV1 |
| 显示的参数(子版本) | PEF, FEV0.5, FEV0.75和FEV1 |
| 工作温度范围 | 17 - 37°c(62.6 - 98.6°f) |
| 测量原理 | 定子/转子质量流量计 |
| 流量/容积范围 | PEF: 25 - 840 L/min BTPS Fev1: 0 - 9.99 l BTPS |
| 精度 | FEV1优于±5%或±100ml(取两者中较大者) PEF优于±10%或±25L/min(两者以较大者为准) |
| 可重复性 | 大于5%或10l /min，两者以较大者为准 |
| 清洁 | 酒精擦拭，尤其是吸嘴，每周一次 |
| 处理方法 | 回收 |
| 性能标准 | ISO 23747:2007;ATS /人2005 |
| 安全标准 | IEC 60601 - 1:2005 |
| 医疗安全标准 | 医疗设备指令2007/47/EC;ISO 13485:2003 |
| 根据 | CMDR FDA 21 cfr820 |
Protect your patient and your testing instruments with the VBMax™ Pulmonary Function Filter. VBMax™ provides a high degree of protection for the patient as well as your testing equipment, while its low resistance allows for accurate testing results.
Independent laboratory tests have verified that this pulmonary function filter is highly effective. VBMax™ consistently filters out more than 99.999% of bacteria and 99.99% of viruses. At the same time, VBMax™ easily surpasses published ATS recommendations for flow resistance in pulmonary function instrumentation, which suggest resistance should be below 1.5 cm H2O/L/sec at flow rates of 14 L/sec.
