Indoor air qualityInterpretive summary
Summary
Sample Client · Two-story home, Portland metro · Sample report, client details removed · Jim Gray, Assessor
Mold Readings: Areas Requiring Attention
| Area | Resting (p/m³) | Resuspension (p/m³) |
|---|---|---|
| Primary bathroom | 30,362 | 21,000 |
| Primary closet | 22,587 | 190,000 |
| Landing office | 11,738 | 59,000 |
| Upstairs office | 13,602 | 40,000 |
| Primary bedroom | 8,744 | 38,000 |
| Primary bathroom drain & under cabinet | 26,377 | 11,000 |
| Laundry | 12,115 | 25,000 |
| Upstairs bathroom drain & under cabinet | 18,875 | 6,100 |
| Laundry drain & perimeter | 17,898 | 18,000 |
Outdoor baseline: 2,647 p/m³. Resuspension readings are as reported on the Area Result Summaries, rounded to two significant figures.
Overall Summary
The inspection identified elevated mold levels in several areas of the home. The primary bathroom measured 30,362 p/m³ in resting air, the highest resting reading in the house, and the Deep-Dive found what appears to be a roof leak over that bathroom and a leaking toilet seal.
The primary closet, both offices and the primary bedroom read moderately at rest but rose sharply when settled dust was disturbed, most notably the primary closet at 190,000 p/m³ on resuspension. That pattern points to spores held in carpet and settled dust rather than a separate source in each room. VOC and CO₂ levels were also elevated in several areas. Conditions like this are common and generally addressable with the steps outlined below.
How to read these numbers
There is no legal "safe" or "unsafe" limit for indoor mold, so every mold reading is measured against the outdoor air sampled at the property that day, 2,647 p/m³. Readings near or below it are typical; readings well above it are flagged as elevated. Resting is the air as found; resuspension measures what settled material adds to the air when the space is in use.
Other measurements compare against published limits, within range at or below and flagged above: CO₂ 1,000 ppm · VOC 400 ppb · Humidity 50% · PM2.5 35 µg/m³ · PM10 150 µg/m³.