Stadler Form Roger Operating Instructions Manual page 52

Inactive Control Run
Control 1
10000
1000
100
10
1
0 10
Test 1
10000
1000
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Device On
The data presented here show that within the first 60 minutes of the Stadler Form Roger Little air
purifier operating at the highest fan speed, the Influenza A concentration in the test chamber was
reduced to less than 0.156 ng/ml (the detection limit of the assay performed to quantify the collected
airborne virus).
Figure 5.3 shows the percentage reduction in Inf A levels (calculated per the formula cited above
in Section 4.4) during the control and test runs. Fluctuations in virus concentration were observed
ASCR092436
Control 2 Control 3
20 30 40
Time (minutes)
Active Test Runs
Test 2 Test 3
20 30 40
Time (minutes)
Page 7 of 10
Average
Figure 5.1
Influenza
(represented on a logarithmic
scale) in the test chamber
during inactive control runs
with no air purifier operating.
Each
represents the average of
three replicates.
50 60
Average
Figure 5.2
Influenza
(represented on a logarithmic
scale) in the test chamber
during
performed with the Roger
Little air purifier operating.
Each
represents the average of
three replicates.
50 60
A concentration
sampling point
A concentration
active test runs
sampling point
FM1201