Research Article
Evaluating the Effectiveness of a Commercial Portable Air Purifier in Homes with Wood Burning Stoves: A Preliminary Study
Table 3
Home A and B particle mass concentrations (μg/m3) measured with the DustTrak, lower and upper confidence intervals, and percent changes (%).
| | | Air purifier off | Air purifier on | | | | Home | Particle cutpoint (μm) | Mean concentration (μg/m3) | LCI (μg/m3) | UCI (μg/m3) | Mean concentration (μg/m3) | LCI (μg/m3) | UCI (μg/m3) | Percent change | P value |
| | A | 1.0 | 8.85 | 3.94 | 13.8 | 3.72 | 1.15 | 6.28 | −58% | .040 | | 2.5 | 13.98 | 5.93 | 22.03 | 3.30 | 1.09 | 5.51 | 76% | .025 | | B | 1.0 | 7.08 | 0.83 | 13.32 | 3.21 | 0 | 7.60 | −55% | .238 | | 2.5 | 13.60 | 8.10 | 19.09 | 3.26 | 2.23 | 4.29 | −76% | .007 | | B | 1.0 | 6.86 | 2.95 | 10.77 | 1.83 | 0.99 | 2.61 | −74% | .025 | | Secondary* | 2.5 | 8.88 | 5.27 | 12.49 | 2.22 | 1.63 | 2.82 | −75% | .007 |
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*Secondary location (bedroom) in Home B 5.84 meters from wood stove.
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