Question about LogiLink pressurized gas cleaner

the aerosols serve to build up pressure and may also escape as liquid, e.g. when sprayed upside down, but are not harmful to the electronics and evaporate quite quickly - nevertheless, it is recommended to disconnect the power and allow any heat to dissipate in order to avoid temperature shocks, which in extreme cases can lead to cracks, for example

As far as cleaning power is concerned, compressed air is great for getting dust and loose particles out of corners where you can't reach with a vacuum cleaner, for example - but you can hardly get rid of stuck dirt like on keyboards, CyberClean is more helpful there.