1
Q
1 micron is how many mm
A
0.001mm
2
Q
3 types of filters
A
Dry filtration
Wet filtration
Electronic filtration
3
Q
HEPA is
A
High efficiency particulate air filter
99.97%
4
Q
ULPA is
A
Ultra low particulate air filter
99.99%
5
Q
Fibrous filters are covered in
A
Oil
6
Q
Electronic air filter use and do what to environment
A
DC
Polute
7
Q
Basic residential MERV
A
1-4
8
Q
Good commercial is
A
10-14
