Why do all of my alarms go off when I am vaccuming
The reason they all go off, is that they are hard wired and all alarm, even if let's say, there's only smoke in one room. It's a safety feature, so that everyone in the house, not matter where they are in house, will know an alarm has sounded.
As to why your vacuum sets of the alarm is somewhat of a mystery. Could it be the vibration? Possibly, but unlikely. Could it be dust that's kicked up by the vacuum? This is more of a plausible reason.
I suspect, that the smoke alarm may have a coating of dust already in it. When more dust or air movement is generated, it trips the alarm.
This can be remedied by cleaning all the detectors with canned compressed air with a straw nozzle (like you clean your computer with). Simply, remove the cover(s) and blow out the inside of the detector(s). If you can't get the cover(s) off, most had wired detectors have a battery backup in each detector, in case of a power outage. Remove the battery(s) and use that opening to gain access to the interior of the detector.
I think this will solve your "alarming" problem.
on Oct 09, 2020