About negative pressure results of 10,000
28:00
26:58
33:48
07:04
07:40
07:01
07:11
10:04
07:01
07:05
08:54
11:25
05:43
05:04
09:36
07:25
07:09
09:41
07:50
07:25
08:39
09:21
09:46
07:09
06:29
09:10
10:30
07:35
10:03
07:52
09:09
10:42
05:47
06:30
10:02
06:23
06:42
06:43
07:57
06:06
10:14
08:32
19:55
09:56
09:01
09:19