User Manual

Table of Contents

• Safety Precautions
• About This Product
• Parts Names
• How to Use the Operation Panel
• Display Explanation
• First Time Use
• Air Quality Display and Tabletop Use
• Maintenance
• Optional Accessories
• Moving the Unit
• Troubleshooting
• Disposal, After-sales Service, and Warranty
• Specifications

Safety Precautions

⚠️ WARNING: Failure to follow these instructions may result in death or serious injury, or fire or electric shock.

DO follow these instructions:

• If you notice any abnormality such as smoke, strange odors, or damage to parts, stop using the unit immediately. Do not operate if it appears damaged. Continuing to use the unit may cause fire or electric shock. If you detect any abnormality, unplug the power cord from the outlet and contact the Blueair Service Center.
• Insert the power plug straight into the outlet until it is fully seated. A loose connection can cause electric shock or fire.
• Use with 100V AC power only. Using with other voltages may cause fire.
• Periodically clean dust from the power plug and outlet. Dust accumulation can lead to poor insulation, causing electric shock or fire.
• When unplugging the power cord, pull the plug itself, not the cord. Pulling the cord can damage the internal wires, leading to short circuits, electric shock, or fire.
• Place the unit in a dry location, ensuring the surroundings are dry before plugging it in. Avoid placing it where it may be exposed to pet urine or steam from kettles, as this can cause fire or electric shock.
• Keep children away from the product to prevent injury or damage.

DO NOT perform these actions:

• DO NOT unplug the power cord by pulling the cord. Pull the plug itself.
• If the unit will not be used for a long period, unplug the power cord. Dust accumulation can lead to poor insulation, causing electric shock or fire.
• When replacing filters, cleaning, or performing maintenance, stop the unit and unplug the power cord. Operating while the unit is powered on may cause electric shock or injury.
• DO NOT force a power plug that does not fit the outlet. This can cause electric shock or malfunction.
• Do not use a power cord other than the one supplied with the unit. This can cause fire, electric shock, or malfunction.
• Do not unplug the power cord while the unit is operating. This can cause fire, electric shock, or malfunction.
• Do not place the power cord or plug near heat sources. This can cause electric shock or fire.
• Do not use the supplied power cord for any other product. This can cause fire, electric shock, or malfunction.

❌ This action is prohibited.

• DO NOT allow children or individuals with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, to use or clean the product without supervision. This can lead to injury or accidents.
• DO NOT strain the power cord or plug (do not cut, damage, bend, pull, twist, place heavy objects on it, bundle it, pinch it, or allow pets to chew on it). Straining the cord can cause electric shock, fire, or short circuits.
• DO NOT use "daisy-chaining" (connecting multiple devices to one outlet) with power strips or extension cords if it exceeds the rated capacity. This can overload the cord and plug, causing electric shock or fire.
• If the power cord is damaged, do not continue to use it or attempt to repair it yourself. Unplug the unit immediately and contact the Blueair Service Center. Continued use can cause electric shock, fire, or short circuits.
• DO NOT insert fingers or foreign objects into the air inlets, outlets, or any gaps in the unit. This can cause electric shock, injury, or malfunction.
• DO NOT place highly flammable items near the unit or power plug, such as: hairspray, insecticides, air fresheners, lit cigarettes or incense, benzine, or thinners. These can cause ignition or electric shock.
• DO NOT use corrosive substances or organic solvents (e.g., benzine, thinners, alcohol, gasoline) for cleaning. This can cause malfunction.
• DO NOT run the power cord under carpets, furniture, or appliances, or cover it with rugs. This can cause fire or malfunction.
• DO NOT disassemble, modify, or repair the unit yourself. The internal components carry high voltage and can cause electric shock or fire.
• DO NOT touch the power plug with wet hands. This can cause electric shock.
• DO NOT splash water on the unit or get it wet. This can cause malfunction, damage, electric shock, injury, or leakage.
• DO NOT install the unit in locations where flammable gases are used or may leak. This can cause ignition or explosion.

About This Product

This product is equipped with a pre-filter and a main filter to effectively purify the air in your room. It also features an operation panel and sensors, allowing you to visualize the air quality by displaying PM2.5 particle data on the screen. The Blueair app can also display PM1 and PM10 particle data.

You can configure the product settings via the main unit's operation panel or remotely using the Blueair app. The Blueair app enables finer adjustments not available on the main unit.

To Maximize Air Purification Performance:

• Use the unit in a space appropriate for its recommended floor area.
• Ensure there is space around the unit for air circulation.
• Do not place objects within 10 cm (4 inches) of the unit.
• Use the unit with windows and doors closed.
• Use genuine Blueair filters.
• Replace the main filter when the filter replacement indicator lamp on the display lights up.
• Perform regular maintenance as described in this manual.

Parts Names

Product Name

Blue Signature™ Air Purifier SP4i Light Grey
SP4i Dark Blue

Model Number

4342212000
4342211000

Components:

• A: Tabletop
• B: Display
• C: Operation Panel
• D: Air Quality Status Lamp
• E: Air Outlet
• F: Carrying Handle Recess
• G: Pre-filter / Air Inlet
• H: Main Filter
• I: Accessory: Wood Legs (sold separately)
• J: Accessory: Metal Base (sold separately)
• K: Power Cord

* Pre-filters are available in various colors (sold separately).

How to Use the Operation Panel

Activate by Waving Hand

The operation panel and display will light up and activate when motion is detected near the unit.

Functions:

• Power ?: Turns the unit on or switches it to standby mode.
• Fan Speed ?: Adjust the fan speed from 0 to 4 according to your preference. The selected speed will be displayed.
• Auto Mode ?️: The fan speed is automatically adjusted based on the indoor PM2.5 level to maintain optimal air quality.
• Night Mode ?: Fan speed reduces to the lowest setting, and the display dims automatically.
• Child Lock ?: Press and hold for approximately 2 seconds to toggle the child lock on/off. An indicator lights up when locked, disabling the operation panel. However, the on/off function can still be operated for safety.
• Filter Replacement Indicator Lamp ?: Lights up red when it's time to replace the filter. After replacing the filter, reset the lamp by pressing and holding the Fan Speed button for about 15 seconds, or via the Blueair app.
• Wi-Fi Reset ?: To turn off the Wi-Fi function, press and hold Auto Mode for about 15 seconds. To reconnect, press and hold Auto Mode for about 5 seconds. When the Wi-Fi LED starts blinking, follow the steps in the "Connecting to the Blueair App" section.
• Display: Shows real-time indoor environmental information, such as the PM2.5 concentration level. (See next page for details).
• PM 2.5: Displays the indoor PM2.5 concentration level.
• Factory Reset: Press and hold the Power button for about 15 seconds to reset the unit to its factory default settings.

Display Explanation

• Initial Startup: During initial startup, the unit analyzes the indoor air quality, and a calibration screen is displayed.
• “Air is clean” Message: When the air becomes clean, a checkmark ✔️ and the message "Air is clean" will be displayed.
• Mode/Speed Display: When adjusting fan speed or mode (Auto, Eco, etc.), the selected setting is temporarily displayed.
• Remaining Time: Displays the estimated time remaining until the air is clean (in minutes). 0 minutes indicates the air is clean.
• PM2.5 Value: Displays the current indoor air quality as a PM2.5 value. PM2.5 refers to fine particles up to 2.5µm in diameter, commonly found in homes, such as dust, soot, dirt, and smoke.
• Night Mode Indicator: When Night Mode is active, the display and air quality status lamp automatically dim.
• Wi-Fi Indicator ?: Appears when the unit is ready for Wi-Fi connection.
• AirSense Mode: AirSense (Refresh) mode automatically refreshes the air several times a day. This mode can be turned on/off via the Blueair app.

First Time Use

Connecting to the Blueair App

Connecting to the Blueair app allows remote control of the unit and checking filter life. The app also provides advanced settings not available on the main unit.

Step 1

Download the Blueair app from the App Store or Google Play.

Step 2

Open the app and create or log in to your Blueair account.

Step 3

Select "Connect Unit" and follow the on-screen instructions to complete pairing.

Tips for First Connection:

• Ensure the unit is powered on.
• Press and hold the Auto Mode button for about 5 seconds to enter pairing mode. The Wi-Fi indicator on the display will start blinking, indicating pairing is ready.
• Bluetooth ? is required for initial pairing. Turn on Bluetooth on your smartphone and operate within 1 meter (approx. 3 feet) of the unit.
• Ensure your Wi-Fi network is available. If using a dual-band router, select the 2.4GHz band.
• For initial pairing, place the unit within 4.5 meters (approx. 15 feet) of your Wi-Fi router.
• If you are using a VPN on your device, disable it when using the Blueair app.

Air Quality Display and Tabletop Use

Air Quality Level

The Blue Signature™ air purifier is equipped with sensors that measure indoor particulate matter (PM1, PM2.5, PM10) concentrations. The Air Quality Indicator (AQI) displays the air condition in 5 color stages:

• Very Clean
• Clean
• Normal
• Dirty
• Very Dirty

The Air Quality Status Lamp indicates the current air quality level.

Tabletop Use

The unit is designed to be used as a tabletop surface on a side table. You can place items like books, smartphones, or small accessories on top. However, do not place the following:

• Wet items or liquids
• Objects weighing over 45kg (approx. 100 lbs)
• Items that generate heat or are directly heated
• Products containing volatile or corrosive substances, such as: detergents, insecticides, disinfectants, adhesives, paints, or air fresheners.

Maintenance

Filter Replacement

Important: Before replacing filters, cleaning, or performing any maintenance on the unit, always turn off the power and unplug the power cord from the outlet.

This product uses Blueair's proprietary RealTrack algorithm to automatically calculate the remaining life of the main filter based on actual usage and indoor air quality. When it's time for replacement, the Filter Replacement Indicator Lamp on the operation panel will light up red. Depending on your environment, replacement is recommended approximately every 9-12 months.

For optimal air purification performance, use genuine Blueair filters. Using non-genuine filters may void the warranty in case of malfunction.

Purchasing Filters

New filters can be ordered from www.blueair.jp or by signing up for the Blueair Filter Subscription service (https://store.blueair.jp/category/FILTER_SUBSCRIPTION/). You may receive discounts.

Main Filter Replacement Method

• Step 1: Turn off the unit and unplug the power cord. Remove the pre-filter (fabric cover) attached to the unit.
• Step 2: Release the lock on the filter connector part attached to the unit and remove the filter.
• Step 3: Attach the new filter to the unit, ensuring it is securely fastened. Follow the arrow indicated on the filter for correct orientation (up/down). Note: Remove the plastic packaging from the new filter before use.
• Step 4: Reattach the pre-filter and plug the unit back in.
• Step 5: After replacing the filter, manually reset the filter replacement period. The Filter Replacement Indicator Lamp will turn off. Reset Method: Press and hold the Fan Speed button for about 15 seconds, or reset via the Blueair app.

Pre-filter Cleaning Method

Clean the pre-filter regularly when it appears dusty or dirty.

Simple Cleaning Method:

Use a vacuum cleaner with a soft brush nozzle to remove dust from the pre-filter.

Thorough Cleaning:

Wash according to the following steps and allow to air dry naturally.

• Step 1: Turn off the unit and unplug the power cord.
• Step 2: Remove the pre-filter from the unit.
• Step 3: Wash the pre-filter according to the instructions on the care label attached to it.
• Step 4: Reattach the washed and dried pre-filter to the unit, covering it.
• Step 5: Attach the pre-filter so that the logo tag is positioned at the top of the unit.

Precautions for Maintenance

• Before performing any maintenance, always turn off the unit and unplug the power cord from the outlet.
• Do not insert foreign objects into the air inlets, outlets, or any gaps in the unit, as this may cause electric shock, injury, or malfunction.
• Do not use corrosive substances or organic solvents (e.g., benzine, thinners, alcohol, gasoline) for cleaning, as this may damage the unit.
• If you clean the unit with a damp cloth, ensure the unit is completely dry before connecting the power cord to the outlet.
• The main filter is not washable. Washing it will render it unusable.

Maintenance Methods

• Wipe the tabletop with a clean, damp cloth wrung out thoroughly.
• Periodically check the power cord and plug for wear or damage, and clean them as necessary.
• The pre-filter can be machine washed or cleaned by vacuuming on a low setting with a soft brush nozzle attachment.

Optional Accessories

Accessories are sold separately. The following options are available:

• Wood Legs (for SP4i): [Image description: Unit shown with wooden legs attached.]
• Metal Base (for SP4i): [Image description: Unit shown with a metal base attached.]

Additionally, colored pre-filters are available separately for customization. For more details, please visit www.blueair.jp.

Moving the Unit

Important: Before moving the unit, always unplug the power cord.

Grasp the recesses on both sides of the unit and carry it.

[Diagram description: Three images showing how to grip the unit by the side recesses and lift it.]

Troubleshooting

Please refer to the following common problems and solutions. For detailed or the latest information, please visit www.blueair.jp/support or contact the Blueair Service Center.

Disposal, After-sales Service, and Warranty

When Disposing of the Unit

Do not disassemble the unit when disposing of it. Dispose of it according to your local government's regulations.

After-sales Service

For inquiries about issues or to purchase consumables, please visit www.blueair.jp or contact the Blueair Service Center.

Warranty

Malfunctions due to usage not in accordance with the contents of this manual are not covered by the warranty. Please be aware of this.

Returns

For returns, please consult the store where you purchased the product.

Customer Service Contact

Blueair Service Center
Phone: 0120-974-419 (Weekdays 9:30 AM - 5:30 PM, excluding weekends, holidays, and year-end/new-year holidays)
Also available from mobile phones.
Manufacturer: Sales On Demand Corporation
Address: 713, MG Meguro Ekimae Bldg., 2-15-19 Kami-Osaki, Shinagawa-ku, Tokyo

Specifications