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Do not plug in any other AC/AC or AC/DC adaptor with
incorrect specifications or voltage.
CO
levels and guidelines
2
Below are some CO
400~600 ppm
600~1,000 ppm
1,000 ~1,500 ppm
1,500~2,000 ppm
2,000~5,000 ppm
> 5,000 ppm
PM2.5 air quality guideline
Fine particulate matter (PM2.5) is an air pollutant that is a concern
for people's health when levels in air are high. PM2.5 are tiny
particles in the air that reduce visibility and cause the air to appear
hazy when levels are elevated.
The WHO updated the new air quality guideline (AQG) levels in
2021 from evidence-based data and information. The highest
recommended average annual emission level for PM2.5 is 5 μg/m
and the 24-hour level is 15 μg/m
Total volatile organic compounds (TVOC) levels
The TVOC covers a large range of different organic gases that may
be chemically similar and difficult to distinguish (e.g. Benzene,
reference levels in general:
2
Background (normal) outdoor air level.
Typical level for occupied spaces with
good air exchange.
Start ventilation of the room.
Level associated with complaints of
drowsiness and poor air. Ventilation
recommended!
Level associated with headaches,
sleepiness, and stagnant, stale, stuffy
air. Poor concentration, loss of attention,
increased heart rate and slight nausea
may also be present. Ventilation strongly
recommended!
Exposure may lead to serious oxygen
deprivation resulting in permanent brain
damage, coma, and death. Requires
immediate ventilation!
3
.
EN13
3
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