Levoit Core 300 User Manual page 8

ABOUT THE FILTER (CONT.)
Clean Air Delivery Rate
Clean Air Delivery Rate (CADR) measures
the efficiency of an air purifier by indicating
the volume of clean air that an air purifier
produces per minute. This is based on
removal of dust, pollen, and smoke, which
are the 3 most common indoor air pollutants.
The higher the CADR, the more particles the
air purifier will remove and the larger the area
it can clean. The rating is measured at the air
purifier's highest speed.
Air Change per Hour
The air change rate is how many times
all of the air in a room can be purified (or
"changed") by the air purifier in 1 hour. Air
changes per hour are calculated on the
recommended room size assuming 8 ft / 2.4
m ceilings. For smaller rooms, the air change
per hour will increase. The Core 300 has
an air change per hour of 5, which means
it can change air 5 times at the max speed.
This purifier is suggested for use in a single,
closed room up to 219 ft² / 20 m².
Note: To effectively clean air, keep windows
and doors closed while the air purifier is on.
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Humidity
Moisture may damage the filter. This air
purifier should be used in an area with a
humidity level below 85% RH. If you use the
air purifier in excessively humid areas, the
surface of the filter will become moldy.
Note: Water or moisture will allow mold to
grow. Air purifiers cannot solve an existing
mold problem, only remove mold spores
and reduce odors.
Essential Oils
Do not add essential oils to the air purifier or
filter. The filter will become damaged by the
oil and will eventually release an unpleasant
smell. Do not use oil diffusers near the purifier.