Can of compressed air - safe to use on electrical stuff?

Hi

Just having loads of building work done & everything is covered in dust … so far nothing has stopped working but once they’ve finished the dusty stage, is it safe to open up the computer & give it a few blasts of compressed air … with regards to the dvd player & hi-fi, can I just open the cd tray & spray in there or do I have to dismantle them to get right inside?

Ty for any advice

Ian

it’s not only safe to use compressed air like this, it’s one of the main uses. removing the covers of everything u wish to spray would be the best thing to do so that the dust gets blown out.

And PLEASE remember to unplug your high voltage cable!/gs.