You can definitely empty them and put them back, you just have to replace them when they tear otherwise all it’s going to do is suck the dust up off your floor and blow it around inside your vacuum, contaminate your vacuum fan and motor and eventually render the vacuum cleaner inoperable and possibly flammable.
Well that’s terrifying.
My old vacuum bags were meant to be tossed, but I just emptied it and put it back because $.
You can definitely empty them and put them back, you just have to replace them when they tear otherwise all it’s going to do is suck the dust up off your floor and blow it around inside your vacuum, contaminate your vacuum fan and motor and eventually render the vacuum cleaner inoperable and possibly flammable.