I put it on the passenger's floor mat and let it spray with the air conditioning on, after having changed the cabin filter. It seems to have done the job and left a scent in the car that lasted about 2 days. It's good, but it contains a small amount of cleaner. I will prefer something more economical next time.

I bought three pieces for three different cars. In two sprays, while the clip was locked and the gas started to come out, it stopped working after a minute. So, not all the gas came out. I tried to use it again but in vain. It's a pity for Liqui moly

Pleasant fragrance it leaves... if there has been cleaning of the cabin filter and air vents. If it is a vehicle that is smoked inside or circulates in a dusty environment, it will not do anything