Horizon Fitness HA 700 User Manual page 16

RATE OF ULTRAFINE DUST
What is PM2.5?
Dust particle size is less than 2.51m. According to research, smaller particle affects the human
health. So all the developed countries instructed since the late 90's.
yearly to 35µg/m daily.
Since July 2017 Republic of Korea change environment standard; 15µg/m 3 3
- The density of PM2.5 start with 5 till 999 display single decibel.
- The density rate of PM2.5 is informed from the sensor manufacturer database.
- The stage of PM2.5 density is informed form the minister of environment PM2.5 forecast.
- The stage of PM2.5 density informed by a PM2.5 forecast from the minister of environment.
- The density of PM2.5 can differ indoor and outdoor.
- HORIZON air purifier's rate of PM2.5 a density might differ than other brands air purifier's and
measuring instrument.
-The rate of PM2.5 density can be affected by surrounding and air flow.
- The rate of PM2.5 density can be affected by environment (Roadside, factory, construction site)
- The dust storm, a PM2.5 alert is activated air is keep came from outside, the rate of density
might continuously increase.
What is TVOC
VOC (Volatile Organic Compounds) is gas of liquid organic compound evaporates at a low tem-
perature. VOC and Nitrogen oxide photochemical reaction occurs it porduces ozone and photo-
chemical oxidant. It is carcinogencity particle similar to photochemical smog, benzene extremely
harmful to the human body. Also, styrene and most VOC classified as particle cause stink odor.
TVOC (Total Volatile Organic Compound) is named all kind of VOC gases, its used as a guideline
for Environmental diagnosis.
• VOC and CO2 density measures might differ from real measures. About 5 minutes after Power
is on.
• Products occur odor such as perfume, air freshener, detergent might effect TVOC measures, do
not place the purifier for long time place occurs odor.
• If the sensor close to the product occurs odor might display the total pollution level continously
high.
• HORIZON air purifier follows German Federal Environment Agency's TVOC pollution rate lighting
colors. (The Republic of Korea do no have any guideline)