Attention! Not really suitable for the stated purposes.

Even if you can read, the butane and propane in it, I did not realize that these are the main ingredients and the content is highly flammable.
Also of note, that you can use the rather less in closed rooms lacking - on the tin Wore it ...
"Do not breathe Without adequate ventilation formation of explosive mixtures possible. Aerosol!" ...

I think that's important information, who are in the product description, because then I would not buy any 3 doses of it.
Also, I think it's so not really recommended to clean the things mentioned.
Beginning not sure exactly my fault, what's in there, because I. Of my previous compressed air spray cans that were filled almost exclusively with the harmless CO2 ran that one anyway only used for such purification purposes
Drum so my warning to those who may not look exactly ;-)

Who namely how I sometimes wants to free powered on computers in the open housing of dust with so ner highly inflammatory history hazardous causing and just that this gas should not be inhaled is indeed an important factor, because most of these things are purified but rather in own 4 walls on the balcony as the outside or so and that stuff smells horrible and breathe indoors is then rather unavoidable.
So please think before buying.