Fitting shleves to lightweight breeze blocks

[solarsecurity]

I need to fit some shelves in my garage but the walls are made of soft breeze blocks. I think they may be the airated type. When I drill into them, they are very soft and not like most other heavy duty breezeblocks or red bricks ( I do not need to use the hammer function on the drill or even masonry drill bits).
What is the best way of screwing shelvesto this type of brick. I don't want to use normal rawl plugs and screws incase the shelves fall down onto my car.

Does anybody know what the best type of fixings to use are?

[welsh brickie]

use stardrive fixings no rawplus required

[solarsecurity]

Cheers! I'll give them a go.