Smelly A/C

[AB]

Can anyone recommend a decent product to clean out some vents / A/C system.

Seems someone stubbed a cigarette out in the exterior vent by the windscreen at some point. Every time I put the A/C on it stinks of stale cigarettes.

Not sure there are any remnants of the ciggy in the vent but could do with something that'll 'febreeze' it for me?

Any ideas?

[AB]

Thanks very much, will head over to Halfords later - I need to buy some oil anyway

[AB]

If a job's worth doing and all that...

Will change the pollen filter.