HOW TO USE
13
ENGLISH
•
Explanation on the display : Since PM1.0 density is bad (yellow) with 50
μ
m/m
3
, display dust at the
odor/dust display. Since ‘odor’ is displayed at the odor/dust display, odor density is also strong. Since
PM1.0 is displayed at the dust particle size display, the density level of PM1.0 is higher than that of PM1.0
or PM2.5.
Ex)
Reference
• PM10 and PM2.5 cleanliness follows the provided by the AQI (2015)
• The overall cleanness level displayed on the product may be different from a level announced by AQI.
(Refer to the user manual.)
• The dust density level for PM1.0 has been displayed in the same manner as the dust density level for
PM2.5.
• The displayed density of micro dust/ultra micro dust could differ from the forecast of the Ministry of Envi-
ronment and from other measurement devices or products.
• In case you use the product which generates steam and micro particles (humidifier, cooling device, spray,
etc.), micro dustry density could change.
- As the dust density values are displayed with the quantity of dust converted into a mass concentration,
they may be different from the real dust densities.
- The displayed dust density values are based on the data provided by the dust sensor supplier.
- The assessment of dust density was made against dust used for our company’s standard tests.
• Since the cleanness display shows overall dust and odor, it could differ from the density value of PM10,
PM2.5, and PM1.0.
• Even in the same space, the PM10 density value could differ from other products due to air circulation.
• The overall cleanness display could change in response to the chemicals contained in air freshener, per-
fume, deodorizer, and cosmetics.
• The displayed dust density value could change depending on the installation environment (affected by sofa,
bed, carpet, vacuum cleaner, humidity, smoke, bugs, fats, etc.)
• The displayed density value of PM10/PM2.5/PM1.0 could change depending on the surrounding environ-
ment (construction site, road side, plant, etc.)
• The density of micro dust could be measured high near exit doors, windows, and ventilation holes or under
the environment where outside air flows in.
• Do not clean the sensor with other materials other than alcohole or water. It may cause product failure.
Checking method of overall cleanness
h Dust density is displayed in the unit of one from 8 to 999. When it comes to the dust density
values, we referred to the data sheets provided by the sensor supplier.
Overall
Cleanness
Red
Orange
Yellow
Green
Status
Odor density
Level
Very
strong
4
Strong 3
Normal 2
Weak 1
Status
Dust density (unit
μ
m/m
3
)
PM 10 PM 2.5 PM 1.0
Very Bad
Equal or above
251
Equal or above
116
Equal or above
116
Bad 151~250 76~115 76~115
Normal 51~150 36~75 36~75
Good
Equal or below
50
Equal or below
35
Equal or below
35