FAQ

Air Purifiers
How do I determine what air purifier I need based on my room size?
Small rooms, often below 100 sq. ft. may only require a tabletop or mini tower-style air purifier to
circulate the air. Medium rooms that range between 100 sq. ft. and 170 sq. ft. will typically need
a floor model that has a larger filter to effectively process the air in the room. Large rooms, over
170 sq. ft. will require a full size tower or box style unit. Most air purifier cartons and descriptions
offer specific information on room size or square footage covered by the air purifier.
What is HEPA?
HEPA stands for “High Efficiency Particulate Air.” A HEPA filter must capture 99.97% of all
particles that pass through it that are 0.3 microns or greater in size. HEPA is composed of a
layer of randomly arranged fibers. HEPA filters are often used in airlines, vacuum cleaners,
cars, etc.
What is CADR?
CADR stands for “Clean Air Delivery Rate” which indicates the volume of filtered air delivered by
an air purifier. CADR ratings show the effectiveness of how efficient the air purifier is at
capturing fine particles, such as: tobacco smoke, dust, and plant pollens.
What certifications do Germ Guardian® Air Purifiers have?
-AHAM (Association of Home Appliance Manufacturers) CADR (Clean Air Delivery Rate)
program, allowing customers to compare smoke, dust, and pollen ratings for different air
purifiers on the market.
- ENERGY STAR provides certification to products that meet certain standards of energy
efficiency through rigorous testing of consumer products.
- ARB Certified means that this air purifier complies with the federal ozone emissions
limit.
Where should I place my air purifier?
You can place your air purifier in a room in your home or office, slightly placed away from the
wall and any furniture. Depending on the model, it can be placed on the ground or on a table.
We recommend placing it in a room that you are using often, or have the most odor, dust,
pollen, or pets.
Can I leave my air purifier on at all times?
Yes, we recommend running your air purifier 24/7, depending on the season, or your needs.
Should there be an odor coming from my air purifier?
If there is an odor coming from your new air purifier, we suggest running the unit for 2-3 days on
high, in a separate room or garage, to give the machine some time to air out. If there is an odor
after use, we recommend changing the filter at your earliest convenience.
Do air purifiers create ozone?

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