Imported by
AIC International, 44980 Ste-Luce-sur-Loire, France
M
: for changing the highlighted month → Press button (7) to confirm
D
: for changing the day number → Press button (7) to confirm
H
: for changing the hour (24-hour clock) → Press button (7) to confirm
Min
: for changing the minutes → Press button (7) to confirm
Sec
: to change the seconds → Press button (10) then either press button (7) to accept and
save these settings (OK) or press button (10) to cancel the changes and return to the previous
screen
Graphs display (HISTORY):
In the settings menu, press button (9) to select History (highlighted) → press button (7) to confirm.
The screen displays the last 10 readings for HCHO, PM2.5, temperature, and humidity measurements.
Select a pollutant (HCHO, PM2.5) or the temperature or humidity readings with buttons (8) and (9).
The relevant pollutant is highlighted and the corresponding graph displayed. With this graph you can
visualize the trend of the automatically measured readings. The tester lets you display ten readings
every ten minutes. The maximum observed value of the pollutant is shown at the top of the screen.
Important:
Readings can only take place when the air quality tester is switched on. If no readings are
displayed, make sure the (Clear Log) option is not activated (Clean).
Step 4: Measurements and comfort ratings
1. Particulates are airborne particles resulting from wood burning, farming activities, general
dust, etc.
Three sizes of “particulate matter” (PM) are defined: PM1.0, PM2.5, and PM10, representing particle
diameters of less than 1µm, 2.5μm, and 10µm respectively. PM2.5—“fine particles”—are the most
common in indoor air.
The measured level of PM2.5 fine particles is displayed by default on line (2) of the interface.
Colour band
Range of PM2.5 values
Rating
Green
0–75 µg/m³
Good
Yellow
76–300 µg/m³
Modest
Red
301–999 µg/m³
Bad (danger)
Important:
Different counties stipulate different legal or recommended thresholds for fine particles.
These thresholds focus mainly on PM2.5. The World Health Organization has defined exposure
thresholds for PM2.5 and PM10 particulates, but PM1.0 is generally overlooked when it comes to
exposure thresholds and guide values. Nonetheless, PM1.0 is the most harmful category of the three,
their extreme smallness allowing them to penetrate the human anatomy. That’s why the Quaelis
indoor air quality tester includes this category in its measurements, especially for the more sensitive
among us. We therefore recommend that PM1.0 measurements be monitored to ensure they remain
lower than those of PM2.5.