Attention, there is no vacuum cleaner that can suck up burning charcoal and hot ashes, which essentially contain very small burning charcoal pieces. Don't even bother looking for such a vacuum cleaner! Any vacuum cleaner that claims to do this is either a store's propaganda or a big lie... This vacuum cleaner has three filters, the first of which is metallic with a fine mesh. However, these very small charcoal pieces in the ashes pass through this mesh and get stuck in the main filter. Combined with the heat generated by these charcoals and the air pulled by the vacuum cleaner, they ignite and burn the main filter, which is made of paper, just like in other vacuum cleaners... To collect the ashes, you need to let them cool completely (this applies to all vacuum cleaners). Otherwise, the only thing you will achieve is to burn the spiral, the filters, and eventually the motor, and you'll have to throw away the vacuum cleaner. Other than that, this vacuum cleaner is good, it sucks up a decent amount of ashes until it gets clogged, and the motor's overheating protection sensor works correctly... It's better to have a compressor to clean the vacuum cleaner's filters when they get clogged!

While it says it is for hot ash
I sucked hot ash from a pellet stove and both internal filters of the top part were destroyed, not the bottom one which is metallic!...
They may have been burned by the heat of the pellets
So the claim of being for hot ash is not valid...
Because within the hot ash, a hot ember can slowly burn.