1.
Large Office Building .......................................................................................................................................... 66
2.
Medium Size Office Building .............................................................................................................................. 69
3.
Urban Small-Scale Building ................................................................................................................................ 73
4.
Hospitals ............................................................................................................................................................ 74
5.
Schools .............................................................................................................................................................. 76
6.
1.
Necessity of Filters .............................................................................................................................................. 86
2.
Data Regarding Dust .......................................................................................................................................... 86
3.
4.
5.
1.
Service Life ........................................................................................................................................................ 94
2.
1.
2.
U.S. ...................................................................................................................................................................... 97
3.
U.K. ...................................................................................................................................................................... 97
1.
................................................................................................................................................................ 107
2.
3.
............................................................................................................................................................ 108
4.
5.
6.
7.
8.
9.
................................................................................................................................................................ 181
ii
.......................................................................................................................... 100
................................................................................................................................................ 107
...................................................................................................................... 109
........................................................................................................................ 137
................................................................................................................................ 140
........................................................................................................................ 142
.................................................................................................................................................... 145
.............................................................................................................................................. 159
.................................................................................................... 82
........................................................................................ 134
................................................................................................ 143
.................................................................................................... 170
........................................................................................ 176
................................................................................................ 188
................................................................................................ 191
................................ 127
181