This Drive Devilbiss Healthcare unit is a portable suction unit with a rechargeable battery.
 
Specifications:
Sealed lead acid battery for use up to one-hour operation
Meets ISO 10079-1:2009 high vacuum, high flow classification
New, innovative container assembly features integrated bacteria filter
Container and filter design maintains appropriate flow rate to meet ISO guidelines
Comes complete with internal battery, carrying case, AC/DC adapters and power cord
New Integrated gauge and flow regulator – Easy-to-turn knob conveniently placed around gauge for easy use and control
Manufactured and tested to ISO10079-1:1999 Standard for Suction Equipment, achieving outstanding performance in the following tests:
Electromagnetic Compatibility Test – Vacu-Aide does not interfere with or is not susceptible to interference from other equipment such as ventilators
Drop Test and Shock Vibration Test – Vacu-Aide is far less likely to be damaged when dropped or shipped
Excessive Temperature Test – Vacu-Aide effectively works in a wide range of environmental temperatures
 
What does 55 dB sound like?
When it comes to sound, 55 dB is generally considered to be a moderate volume. 55 dB is the equivalent of a normal conversation or the sound of a dishwasher running or most home oxygen concentrators.