It is expressed as a percentage (%). For example, at 70°F/21°C,
saturated air has over 1 pound of moisture in 1000 cubic feet,
which is 100% relative humidity. At 50% relative humidity, only
one-half the amount of water is present. A measuring device called
a hygrometer is available through local retailers to measure the
relative humidity level in your home.

Where should I place the humdifier in my home?
Place it on any inside wall away from obstructions and as close to
the cold air return of your furnace as possible for the best operation.

Where should I set my humidifier's humidistat?
Generally set the humidistat in the medium range (30 – 50%RH) or
at a level that maintains your personal comfort.

When do I have too much humidity?
You will notice water droplets (condensation) forming on the inside
of your windows. Turn your humidity level down. As the outdoor
temperature increases, a higher level of indoor humidity can be
maintained. Conversely, as the outdoor temperature decreases,
lower levels of indoor humidity can be maintained before condensation
occurs on your windows.

How often should I change my filter?
As the filter gathers impurities you will notice it begin to discolor.
When the lower portion shows distinct dis-coloration, it's time to change
your filter. Generally filters should be replaced at least once during the
season. This will vary depending on the amount of solids in your water.

How long should my humidifier run?
Your humidifier could run constantly for up to 24 hours at the beginning
of the heating season to reach the desired relative humidity in your home.
Once that level is achieved, the automatic humidistat will control the on
and off cycling of your humidifier. Generally speaking, the colder the
outside temperature, the more often your unit will run.

What is the difference between the bottle fill and bucket fill method?
BOTTLE FILL: Some humidifiers now have removable water-carrying bottles.
This allows you to take the water bottle to the sink for easy refilling.
A convenient carry handle makes it easy to transport the bottle to and
from the humidifier and the sink. Generally, this is a less messy way of
replenishing the water supply in your humidifier.

BUCKET FILL: This means exactly what it implies. A standard bucket or
pitcher is used to carry water from the sink to the humidifier. This allows
the user an opportunity to carry a small or large amount of water to the
unit based on his/her own physical abilities.