Babbs In-Duct Air Purifiers
Frequently Asked Questions
How does it work?
Babbs in-duct air cleaners are installed in the main air return duct so
that all the air that is drawn through the HVAC system is purified. They
also circulate the purified air throughout the home through all the supply
vents. The air is purified when it passes nearby the unit's ultraviolet
light lamp. Through a unique, patent-pending process, this lamp produces
four highly-effective air purification agents that remove impurities,
particles, and odors from the air: 1) Germicidal Uultraviolet (UV) Light; 2)
"Activated Oxygen" / Ozone; 3)
Negative Ions; 4) Purifying Hydroxyls.
More information on each of these air-cleansing
The ozone (which oxidizes pollutants and removes odors) is also blown
throughout the supply vents along with the purified air, providing further
purification for the home or building.
How does this differ from a filtration system?
- Much more economical, particularly in terms of
replacement costs. Filters need to be replaced much more frequently than
Babbs in-duct air purifier UV light bulbs, and are much more expensive
- Much more effective. Removes/destroys particles of
a much smaller size. HEPA filters (the most effective filter available)
are effective at removing particles as small as .3 microns. Ozone and
ions can effectively remove particles as small as .01 microns, and UV
light is effective for pollutants as small as .000001 microns. Babbs
in-duct air cleaners can remove many types of pollutants and particles
that even HEPA filters cannot, such as viruses, odors, most fumes, most
bacteria, most smoke particles, most gases, and many of the different
types of dust, allergens, and skin flakes.
How is this different than a portable unit that plugs into the electrical
Babbs in-duct air cleaners are the most economical way
to thoroughly cover an entire home. A portable ozone and negative ion air
purifier is more effective for the area in which it is placed. For
instance, if you had a strong odor or indoor pollution source in one area
of the home or building, a portable unit would be more effective, but it
would not be very effective for rooms on other floors, or at the other end
of the home or building. This is due to the fact that it would be closer
to the primary problem area, and separated from other parts of the home or
building by walls, floors, ceilings, etc.
The in-duct unit would be sufficiently and equally effective for the
whole home though. This is due to the fact that it purifies all the air
that enters the duct airways, and since it evenly distributes purified air
to every room, through the supply vents.
The in-duct air purification system is also better at evenly
distributing the ozone. Another minor advantage with the in-duct unit is
that there is no noise. Portable IPS Babbs and Spring Air units produce
low levels of noise.
How much square footage can be covered?
There are three different models for different sizes of homes and buildings.
The "In-Duct A1501" covers up to 1500 sq. ft. The "In-Duct A2501" covers
between 1500 and 2500 sq. ft. and the "In-Duct A5001" covers between 2500
and 5000 sq. ft. Custom units are available for spaces larger than 5000
sq. ft. Just contact us for more details for larger units.
What maintenance is required?
(UV) light bulb needs to be simply wiped with a soft cloth and alcohol
every 3-6 months. Failure to do so will not damage the unit, but will
affect the output of UV light, ozone, purifying hydroxyls, and negative
ions, reducing the effectiveness of the unit, but only until this simple
task is performed.
What replacement costs are there?
The only part
that needs to be replaced is the UV lamp bulb itself. This will cost less
than $50 (price depends on model). It only needs to be replaced about
every 14 months or so. This is much less costly than filtration systems,
which typically need their filters replaced every 2-4 months. These
replacement filters (or filter sets) can easily cost around $100 per
How do you turn it "on" or "off"?
Once installed, the Babbs in-duct
air purifier will automatically be activated when the HVAC system is "on".
In other words, if the A/C, the heat, or if just the fan is on, then this
unit is working. If none of these are on, then the unit is "off". Once
initially installed, the unit can be easily disabled by simply unplugging
it at the air handler.
How is it installed?
Babbs in-duct air purification
systems need to be installed by a HVAC or air conditioning contractor to
ensure proper installation. You can find one by looking in the Yellow
Pages under "Air Conditioning Contractors". It should take about 20 - 30
minutes to install, costing around $60.
Babbs In-Duct Air Purifier Installation Instructions
Is it necessary to have a central A/C system?
Yes. Babbs in-duct air
purifiers need to be installed at the main air return duct in any central
Is it easy to remove and reinstall if necessary?
initial installation requires some wiring, which is why an A/C contractor
is necessary. To remove, you simply need to unplug it. It is easy to
remove after doing so. Reinstalling is also very simple.
How does it prevent particles (such a dust) from entering back into the
living space of the home or building?
Negative ions will
magnetically attract to particles such as dust, smoke, pollen, chemicals,
etc. and trap them against the inside of the duct work. The ozone and
hydroxyl radicals, which are powerful oxidants, will then oxidize (or
"bake") particles into the inside of the ductwork, so they do not re-enter
the living space of your home or building. The negative ions are
concentrated in a 3-6 foot radius around the unit, so any particulate that
does accumulate can be easily wiped away while you are wiping off the bulb
(recommended to do so about once a month). It is easy to clean the
magnetized particles that are attached to the ductwork, since they will
mostly be within a few feet of the unit.
However, it is recommended to use a filter in conjunction with the
Babbs induct UV air purifiers, to more efficiently collect dust and
other particles that pass through the system. The Babbs unit allows you
to use a less expensive filter, since it will take care of the microbial
and chemical pollutants, and will cause smaller particles to aggregate
together, forming larger particles.
Can the ozone be harmful?
In general, ozone can be harmful, but only when occuring at very high
concentrations. The Babbs in-duct air purifier will never produce an ozone
level high enough to become harmful. Ozone does not become even a minor
lung irritant until it reaches a concentration between .1 to .2 parts
per million. However, the smell of the ozone becomes unpleasant well before
reaching this level. The FDA standard for ozone is .04 parts per million,
and the Babbs in-duct unit will typically produce .02 parts per million
of ozone evenly throughout a home. It will produce a maximum of .04 parts
per million. At these levels, the ozone produce a fresh smell, reminiscent
of the smell in the air after a thunderstorm. For your information, ozone
will have an unpleasant "electric" smell if it gets too high above .04
parts per million. This makes it self-policing since the smell will become
overbearing well before it becomes harmful.
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Springfiled Rd Bloomington, IL, 61701
309 829 9455
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