14
Air Changes Per Hour
Volumetric Flow Rate
Low
Speed
Room Square Footage
Air Changes Per Hour
Medium
Speed
(8 ft
ceiling)
(9 ft
ceiling)
(10 ft
ceiling)
1
2
3
4
5
6
High
Speed
875
778
700
117
233
350
467
583
700
1000
889
800
133
267
400
533
667
800
1125
1000
900
150
300
450
600
750
900
1250
1111
1000
167
333
500
667
833
1000
1500
1333
1200
200
400
600
800
1000 1200
1750
1556
1400
233
467
700
933
1167 1400
2000
1778
1600
267
533
800
1067 1333 1600
2250
2000
1800
300
600
900
1200 1500 1800
2500
2222
2000
333
667
1000 1333 1667 2000
3000
2667
2400
400
800
1200 1600 2000 2400
3500
3111
2800
467
933
1400 1867 2333 2800
4000
3556
3200
533
1067 1600 2133 2667 3200
4500
4000
3600
600
1200 1800 2400 3000 3600
5000
4444
4000
667
1333 2000 2667 3333 4000
5500
4889
4400
733
1467 2200 2933 3667 4400
6000
5333
4800
800
1600 2400 3200 4000 4800
7000
6222
5600
933
1867 2800 3733 7000 6222
Table 1: Air changes per hour at different flow rates
Note: Highlighted Cells indicate unit range. See ASHRAE standard 62.1 for required ventilation for
acceptable indoor air quality. CenterPoint devices do not deactivate or oxidize 100% of all
contaminants in the air. Lower air speeds increase the effectiveness of the air purifier.
