As the air pump is just being come, I have of course tried directly. I am pleasantly surprised. a lot. I have 140 x tested the air pump on a 200 x 22 cm Luftmatrarte. When one of these great. This small inconspicuous air pump has filled within the shortest possible time. [EDIT 18:11:11] I looked up at the clock time: about 2 minutes. what is said about this. And even with pressure! So the air mattress does not sag due to low pressure.
The only reason this air pump is reaps only 4/5 stars of the noise they cause. unfortunately. So this air pump is not suitable for 'cloak and dagger covert actions'. At night, when others want to sleep, my advice is to resort to hand-operated.
When the music turns but loud enough, then disturbs the noise no longer at sooo doll. XD
