This simple test analyzes the effectiveness of various types of masks.
Loading comments...
-
18:41
Digital Trends
1 year agoIs Blu-Ray Dead? This 4K Disc Player Says No | Magnetar UDP-900 Unboxing/Impressions
1.32K2 -
0:56
Buzzvideos - EN
4 years agoDoctor shows effectiveness of different types of masks
9752 -
0:56
Buzzvideos - EN
4 years agoDoctor shows effectiveness of different types of masks 9
5554 -
0:40
KTNV
5 years agoEffectiveness of DIY face masks
1741 -
0:49
KIVI
4 years agoDuke University study shows effectiveness of different face masks
4422 -
0:34
WPTV
5 years agoWEB EXTRA: Test results of face mask effectiveness
36 -
3:39
Bouboumbareck
4 years ago $0.01 earned6 SIMPLE INVENTIONS
3711 -
1:04
Shulha
5 years agoDances Simple .
83 -
2:14
Bouboumbareck
4 years ago $0.02 earned6 SIMPLE INVENTIONS Part 2
1691 -
3:38
Bouboumbareck
4 years ago6 simple invention part 3
135