Summary Report Air Purifier Project (VOCs)

Summary Report Air Purifier Project (VOCs)

Summary Report
Air Purifier Project (VOCs)
October 31, 2006
Introduction
10/12/06 to 10/17/06. This research project consisted of setting up a 6’x6’x4’ air tight
sampling chamber and testing the effectiveness of an air purifier, supplied for particulate
counts, sound level, velocity check, and volatile organic compounds (VOCs).
Particle counts ranging from 0.3 microns to 5.0 microns were measured using the ART
Instruments, Inc. HHPC-6 Airborne Particle Counter that was connected to the inside of
the chamber via a Teflon tubing.
The sound level test (Quest 210 Sound Level Meter) was performed at a distance of 3
meters. The sound level measurement was performed prior to the chamber testing.
The velocity check (TSI VelociCheck) testing was also performed prior to the chamber
testing. The velocity of the unit was measured at the air delivery panel section.
A standard consisting of 36 known compound concentrations was injected into the
chamber. Samples were then taken into Summa canisters at different time periods with the
purifier unit running. The canisters were then tested for the VOCs, and the results were
tabulated. At the start of each time interval, the particle counter was also turned “ON”
monitoring the particle counts.
Chamber Structure and Building Up
Figure 1 shows the structure of the chamber. A 6’X6’X4’ chamber frame was built using
steel angle poles. All chamber wall materials are wood compress with plastic coating on
the inside faces. The air purifier was placed at one end of the chamber. The sampling
line (used to inject the standard and take the samples) was positioned near the air outlet
towards the top of the chamber. The total volume of the chamber is 144 cubic feet. All of
the internal joint lines were sealed with sweet rice glue pasted onto ordinary office paper.
Sweet rice glue was used because it contains no VOCs.
VORNADO AIR, LLC
.
415 East 13th Street
.
Andover, KS 67002
phone: 316.733.0035
.
fax: 316.733.1544
.
www.vornado.com
Figure
1. Structure
the Testing
Chamber
Figure
1. Structure
of the of
Testing
Chamber
Experiment
Experiment
A standard gas with VOCs was injected into the chamber through the sampling line. The purifier
fan was turned on, and the VOCs were circulated throughout the chamber. A sample was then
collected as a baseline measurement (called 0 hour) into a 6L stainless steel Summa canister. The
air purifier was then turned on, and separate canister samples were taken at 5min, 15min, 30min,
60min, 2, 4, 8, 12, and 24 hours, respectively. The canisters were analyzed for VOCs using a Hewlett
Packard GC/MS following EPA method TO-14. The particle counts were also documented at the
start of each of the times listed above
Results
The attached data package includes all the individual analytical results at the different time
intervals. A data summary report is also included tabulating the air purifier tested and the results
obtained. A VOC degradation graph along with particle count, velocity check, and sound level
testing is also included.
Data Summary Sheet
Concentrations are in ppbv
CONSTITUENT
page 1 of 2
431-1
0 min
431-2
5 min
431-3
15 min
431-5
60 min
431-6
2 hr
431-7
4 hr
431-9
12 hr
431-10
24 hr
Benzene
8.80
6.49
5.74
5.26
2.00
1.06
0.50
0.36
Bromomethane
6.85
5.52
2.46
2.48
0.98
0.45
ND
ND
Carbon Tetrachloride
8.47
6.61
5.81
5.46
1.93
0.94
0.29
ND
Chlorobenzene
8.72
5.51
4.59
2.85
0.83
0.36
0.20
ND
Chloroethane
6.93
5.57
0.48
2.43
0.88
0.36
ND
ND
Chloroform
7.97
6.55
5.18
4.93
1.80
0.89
0.31
0.22
Chloromethane
8.52
6.66
2.22
1.96
0.72
0.36
0.24
ND
1,2-Dibromoethane
8.30
5.67
4.49
3.52
1.11
0.51
0.27
ND
1,2-Dichlorobenzene
10.1
4.50
2.72
1.15
0.28
ND
ND
ND
1,3-Dichlorobenzene
10.2
4.84
3.01
1.20
0.31
ND
ND
ND
1,4-Dichlorobenzene
10.5
4.46
2.60
1.10
0.30
ND
ND
ND
1,1-Dichloroethane
7.26
5.53
4.70
3.98
1.61
0.78
0.20
ND
1,1-Dichlorethene
7.12
5.69
3.58
3.24
1.33
0.59
ND
ND
Dichlorodifluoromethane
8.73
6.88
1.38
1.36
0.99
0.58
0.43
0.27
Dichlorotetrafluoroethane
8.30
6.07
1.43
2.18
0.84
0.45
0.21
ND
1,2-Dichloroethane (EDC)
8.12
6.08
5.13
4.69
1.63
0.76
0.24
ND
cis-1,2-Dichloroethene
7.39
5.76
4.75
4.39
1.49
0.68
0.21
ND
1,2-Dichloropropane
7.94
6.10
5.17
4.70
1.65
0.77
ND
ND
Data Summary Sheet
Concentrations are in ppbv
CONSTITUENT
page 2 of 2
431-1
0 min
431-2
5 min
431-3
15 min
431-5
60 min
431-6 2
hr
431-7
4 hr
431-9
12 hr
431-10
24 hr
cis-1,3-Dichloropropene
7.96
5.86
4.74
3.99
1.28
0.55
ND
ND
trans-1,3-Dichloropropene
8.50
5.51
4.35
3.21
0.95
0.37
ND
ND
Ethylbenzene
21.1
7.26
13.8
6.27
2.40
1.61
1.67
1.97
Hexachlorobutadiene
12.3
4.46
2.72
0.97
0.20
ND
ND
ND
Styrene
9.75
6.73
6.21
5.90
2.38
1.48
2.13
2.52
1,1,2,2-Tetrachloroethane
8.00
4.55
3.63
2.32
0.62
0.27
ND
ND
Tetrachloroethene (PCE)
9.05
34.4
5.88
4.68
1.47
0.68
0.33
0.33
1,1,1-Trichloroethane
8.49
6.50
5.58
5.27
1.81
0.89
0.24
ND
1,1,2-Trichloroethane
8.19
5.81
4.97
4.04
1.35
0.62
0.28
ND
1,3,5-TMB/4-Ethyltoluene
9.17
5.13
3.53
1.58
0.33
ND
ND
ND
1,2,4-Trimethylbenzene
9.72
5.12
3.31
1.52
0.42
0.28
0.41
0.36
1,2,4-Trichlorobenzene
15.8
3.23
0.90
0.37
ND
ND
ND
ND
Trichloroethene (TCE)
8.30
6.40
5.51
4.95
1.71
0.83
0.33
ND
Trichlorofluoromethane
7.63
6.30
3.83
3.55
1.34
0.77
0.31
ND
Trichloritrifluoroethane
7.52
5.92
3.70
3.68
1.47
0.73
0.23
ND
Vinyl Chloride
7.33
5.57
1.94
1.82
0.71
0.33
ND
ND
m&p-Xylenes
69.2
14.6
44.5
8.69
3.11
2.00
2.27
2.48
o-Xylene
11.4
6.05
6.80
3.55
1.19
0.74
0.81
0.94
Particle, Sound. & Velocity Results
Air Cleaner Airborne Particle Count - Tested 10/12/06
Time
0 min
12 hrs
0.3 um
7744
12
0.5 um
732
0
Count
0.7 um
1.0 um
323
230
0
0
2.0 um
116
0
Air Cleaner Sound Level - Tested 10/11/06
Level 1
X - Large
60.7
Level 2
Large
57.5
Noise (db)
Level 3
Medium
49.5
Level 4
Small
44.6
Level 5
X - Small
<40
Air Cleaner Velocity Check -Tested 10/11/06
Velocity (Ft/min.)
Large
750
Medium
420
Small
158
5.0 um
25
0