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CAUTION: Do not pour water through
the Exhaust Grill on the Upper Housing.
Doing so may cause damage and per-
sonal injury.
CAUTION: • Unplug Unit when filling
• Always place Humidifier on a firm level
surface. Locate the Power Cord so the
Humidifier is not resting on it, and is away
from traffic.
• Be careful not to overll.
• Do not pour water through Exhaust Grill,
doing so may cause damage and personal injury.
• Take extra care to prevent water spillage
that may damage furniture or flooring. The
manufacturer will not accept responsibility for
damage to property caused by water spillage.
• Always be sure the Power Knob is in the OFF
position when plugging Humidifier into a
grounded 120 volt AC wall outlet.
• To prevent risk of electrical shock and injury to
persons, do not plug Humidifier into electrical
outlet with wet hands.
1. It is recommended that all Humidifiers be cleaned prior to
use. Please read Cleaning Instructions for Base and Jug
cleaning.
2. Use the convenient Carrying Handle found on the bottom of
the Water Jug to bring it to a faucet. The Water Jug features a
‘Quick Fill/Quick Empty’ Spout. To fill, hold Jug upside down
by the Handle. Use thumb to press down Stopper Lever, and
fill Jug. Fill the Water Jug with cool tap water. Never use hot
water. (Figure 3)
When the Jug is replaced back into the Base it will quickly
empty to ll Base.
NOTE: While carrying filled Water Jug back to the Humidifier,
hold the Handle with one hand, while supporting bottom of
Water Jug with other hand.
3. Place the Water Jug securely in the Base. If positioned
properly, water will quickly pour into Base and automatically
stop when reaching desired amount.
4. When gurgling noise stops lift up the Water Jug to see if it is
empty. Refill if empty. When the Unit is full some water will
remain in the Jug.
5. Even though your Humidifier will produce approximately 9.0
gallons in a 24 hour period*, the water capacity (amount
of water the Humidifier will hold at one time) is 4.5 gallons.
(3 FULL Jugs).
DO NOT FLATTEN, SQUEEZE OR TWIST FILTER WHEN
CLEANING
7. Discoloration of the Evaporative Pad is normal after
extended use. The discoloration is caused by min-
eral deposits in the water, and the degree of dis-
coloration will vary depending upon the amount of
mineral content in the water. When the Filter sur-
face area is thoroughly discolored, or you notice
reduced water usage, it is a good indicator that the Filter
Pad needs to be replaced. The Evaporative Pad should be
replaced at least once every season.
The Replacement Filter to be used in this unit is:
The Lasko Replacement Evaporative Pad Model THF 8
(Available separately)
1. Regular cleaning is necessary to ensure proper and
efficient operation. The frequency of cleaning depends
on the amount of impuri-
ties which may be found
in the water or howoften
the Humidifier is in opera-
tion. In either instance, it
is recommended that the
Humidifier be cleaned at
least once a week.
NOTE: The bottom of the Jug
may be unscrewed for easy
cleaning.
CAUTION: Make sure bottom of
jug is securely fastened to Jug
before reinstalling into Base.
2. TO DESCALE BASE AND
JUG: Mix one part undi-
luted white vinegar with four parts warm tap water. Let
vinegar solution stand for 20 minutes then wipe away any
scale buildup using a soft brush or cloth. Do not use soap
or detergents and never use an abrasive cleaner.
3. TO DISINFECT BASE AND JUG: Fill Jug with 1 teaspoon
of chlorine bleach and 1 gallon of water. Let solution stand
for 20 minutes. Carefully empty Jug and rinse well with
water until bleach smell is gone.
4. Commercial "Descalers" and "Bacteriostats" are available
at your local home improvement center.
5. Do not operate Humidifier when there is still cleaner in
the water.
CLEANING
(Jug Holds 1-1/2 Gallons)
FILTER CARE
Rev. A 5/07 2 2084473 Rev. A 5/07 3 2084473
1. Clean and dry Humidifier thoroughly per the Cleaning
Instructions. Do not leave any water in the Unit when stor-
ing.
2. Dispose of the Evaporative Filter Pad. Do not store used
Evaporative Filter Pad in the Humidifier.
3. Place Humidifier back into its carton and store in a cool
dry place.
OFF-SEASON STORAGE
The Filter inside your Humidifier plays a very important part in
its operation. In order to maintain peak performance, it is highly
recommended to use only LASKO REPLACEMENT FILTERS.
Some imitation filters do not comply with Lasko’s quality standards,
resulting in decreased performance of your Humidifier.
CAUTION: To prevent electric shock, always turn Power
Control Knob to OFF position and unplug before servicing.
1. To replace the Evaporative Filter Pad, remove the Jug and
Upper Housing from the Base. Be careful not to let excess
water from pump spill onto furniture or flooring.
2. Remove Evaporative Filter Pad Holder from Base and in-
spect Small Water Drip Holes for any blockage.
Figure 7
3. To open the Filter Holder apply outward pressure to the
two snaps and it will hinge open. Remove used Filter from
Holder and discard.
Figure 8
4. Insert new Filter into Holder, snap closed, and reinstall
Holder into Base. The Filter will only t into the Holder
one way. Make sure the Rounded side of the Filter Holder
is facing outward. Replace Upper Housing, then Water Jug
into Base.
5. To increase the life of your Filter Pad turn
Filter around (so the bottom of Filter is
now at the top).
6. Filter life may be extended by cleaning
the Filter in a 20% vinegar solution. To
clean Filter, mix one part undiluted vinegar with four parts
warm tap water. Soak the Filter in this solution for 20 min-
utes, rinse Filter thoroughly with warm water to remove
vinegar odor.
Filter Pad Holder
Base
Drip Holes
Snaps
Evaporative Filter Pad
Figure 3
Carry Handle
Stopper Lever
Quick Fill /
Quick Empty
Spout
The presence of water flow in the Water Show Window indicates
the circulation of water to the Filter.
1. Turn fan speed knob to desired speed.
- For fast humidification of a large room or house,
approximately 9 gallon per day.*
- For normal operation.
- For quiet, night time operation or after desired moisture
level is reached.
* Calculations based on ambient room conditions of 70° F
and 30% relative humidity in a room of average insulation.
3
2
1
The correct room humidity display will set itself 10 seconds
after the power cord is plugged into a 120 V outlet.
2. Push the humidity set button up or down, to adjust the
humidity to the desired level. The desired humidity range
is 25% to 95%.
The desired humidity level is displayed in small numbers and
the correct room humidity % is displayed in large numbers.
Once the current room humidity level reaches the desired
humidity level, the fan will turn off and the humidity indicator
light will come on. This light indicates that the humidifier is
still on and will again start when the current room humidity
level falls below the desired set level.
If the current room humidity drops below 25% or goes above
95%, the display will blink off and on until the current room
humidity is within the 30% to 90% range.
OPERATION
Figure 4
1
2
3
0
1
5
4
3
2
Figure 5
1. Fan Speed Knob
2. Humidity Set Button
3. Desired Humidity %
4. Current Room Humidity %
5.
Humidity Indicator Light
- Light comes on when desired
humidity level is the same or
lower than current room humidity
while the speed knob is in the on
position.
(Base Holds 3 Gallons)
Water Capacity of Unit is 4.5 Gallons
FILLING
Figure 9