
Blueair
300 Series
User Manual 2
Manual del usuario 8
Guide d’utilisation 14
Blueair 300 Series/Serie/Série

English
Contents
2 Welcome
3 Getting started
5 Getting the most from your Blueair system
6 Changing the filter
7 Filters
Welcome
Thank you for choosing Blueair. Before you start using your Blueair air
purifier, take a few minutes to become familiar with the basics.
Filter replacement
Be sure to change your Blueair filter according to the recommended filter
replacement schedule. This helps keep your Blueair air purifier running in
top condition. See page 6.
Extend your warranty
Complete and send your warranty card to Blueair today to extend your
limited warranty.
Help keep the planet healthy, too
Blueair air purifiers provide maximum improvement of indoor air quality with
minimum impact on the environment. The entire unit can be recycled.
Blueair 300 Series
2

English
Getting started
General safety instructions
The Blueair 300 Series air purifier is an electrical appliance. Please read the
safety instructions before use and take the necessary precautions to reduce
the risk of fire, electric shock or injury. The Blueair Limited Warranty applies
only if the unit is used according to these instructions.
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience
and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the
appliance. If the supply cord is damaged, it must be replaced by the
manufacturer or its service agent or similarly qualified persons in order to
avoid a hazard.
Placement
Place the unit in a location that allows air to circulate freely in, out and
around the unit. The minimum acceptable distance from another object is
4˝ or 10 cm. Use only genuine Blueair filters. Do not place the unit:
Directly on or against soft furnishings, such as bedding or curtains.
Near sources of heat, such as radiators, fireplaces or ovens.
Near wet areas, such as bathrooms or laundry rooms, where it may come into
contact with water.
Outdoors.
Blueair 300 Series 3

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Settings*
Plug the cable into a grounded wall outlet and turn on your Blueair unit.
The blue light-emitting diode indicates that the unit is working. Set the
control knob to maximum speed, which is recommended for fast initial
cleaning, daytime use, or very polluted air. After a few minutes, adjust the
control to the desired speed. Minimum speed is generally recommended
for nighttime use.
Care and maintenance
Blueair air purifiers feature high quality design, materials and workmanship.
To keep your unit in top condition, we recommend routine cleaning. The
appliance must be disconnected from the supply mains before cleaning or
maintenance.
• Vacuum the air intake grille from the inside when you remove the filter to
replace it.
• Vacuum the small inlets with a soft brush attachment.
• Wipe the exterior of the unit with a soft, clean, damp cloth.
• Never clean with gasoline, chemical solvents or corrosive material also
as these agents may damage the surface.
• Do not allow foreign objects to enter the ventilation or exhaust openings.
This may cause electric shock or damage the unit.
• Do not try to repair or adjust any of the electrical or mechanical functions
on your Blueair unit yourself. Contact your local dealer or Blueair for
warranty information.
* For Blueair E Series units (270E, 450E, 550E, 650E), please refer to the separate sheet included with your
unit for instructions on settings.
4 Blueair 300 Series

English
Getting the most from your
Blueair system
The Blueair system is easy to use. Make sure your unit is the right size for
your room, and change the filters according to recommended filter replacement schedule. Remember that, just as air conditioners and heaters have
limits to the volume of air they can cool or heat, every air purification system
has limits to the volume of air it can clean. Follow these common-sense
guidelines.
Close your windows
You wouldn’t throw open your windows on a hot summer day and expect
your air conditioner to work efficiently, because you can feel the hot air
coming in and the cool air going out. Even though you can’t see the
contaminated air coming in and the clean air going out, the same logic
applies to your air purifier.
Close your doors, too
Just as you might seal off part of your house on a cold winter night to keep
your heater working more efficiently, seal off the room in which your system
is working for best results. This is especially important for people using a
Blueair system to ease nighttime asthma or allergy attacks.
Run your system 24 hours per day
For best results, run your Blueair unit 24 hours a day, 7 days a week.
Round-the-clock operation ensures that a continuous supply of clean,
filtered air constantly circulates throughout the room. Blueair systems are
designed for phenomenally low power usage. In fact, it costs about the
same to power a Blueair air purifier as it does to power a single light bulb,
depending on the unit and the operating speed.
Blueair 300 Series 5

Changing the filter
English
Step 1
Unplug the unit.
Step 3
Slide out the old
Blueair filter.
Step 2
Open the door.
Step 4
Vacuum inside the unit with a soft
brush attachment.
Step 5
Slide in the new Blueair filter.
Blueair 300 Series
6
Step 6
Close the door, plug in the unit
and turn it back on.