User Manual For Kosmen KM-A99 Air Purifier

Product Functions

Air Purification

Kosmen KM-A99 Air Purifier features a 3-layer filtration system, including a pre-filter, H13 HEPA filter, and activated carbon filter. This filtration system effectively removes dust, fine particulate matter (PM2.5), bacteria, viruses, and unpleasant odors, providing a clean and healthy indoor environment.

Negative Ion Generation

The purifier can emit up to 5 million negative ions/cm³. Negative ions help neutralize airborne dust particles and bacteria, enhancing air purification efficiency and providing a refreshing and comfortable atmosphere.

UV Sterilization

Equipped with a UV lamp, the KM-A99 effectively eliminates bacteria, inhibits viruses, allergens, mold spores, and pollen, while rapidly reducing odors.

Humidification

With a humidification capacity of 200 ml/h and a 1.5-liter water tank, the Kosmen KM-A99 helps maintain optimal indoor humidity in dry environments, suitable for rooms of 80–100 m².

Timer

Allows users to set the operating time of the purifier with options of 1h, 4h, 8h, or 12h.

Child Lock

Disables all control panel functions to ensure safety in households with children.

User manual for Kosmen KM-A99 Air Purifier

Wi-Fi Connectivity & Remote Control

Users can connect the purifier to the "Smart Life" or "Tuya Smart" app for remote control via smartphone. Additionally, the purifier comes with a convenient remote control.

Smart Sensor & Air Quality Indicator

The purifier automatically evaluates and displays air quality using a color-coded LED indicator:

• Green Light (PM2.5: 0–70): GOOD air quality
• Pink Light (PM2.5: 71–150): MODERATE air quality
• Dark Purple Light (PM2.5: 151–250): POOR air quality
• Red Light (PM2.5: 251–500): VERY POOR air quality

User Instructions

Control Instruction

Control Panel – Touch Screen

Power

Press the button to turn the device on or off.

Timer

Press to select the device’s operating time with options of 1h, 4h, 8h, or 12h, corresponding to the preset run duration.

Fan Speed

Choose from 5 fan levels according to your needs:

• Level 1
• Level 2
• Level 3
• Level 4
• Auto (adjusts based on air quality sensor)

Humidify

Press to turn the humidification function on or off.

UV/Anion

Press to activate or deactivate the sterilization and antibacterial functions (UV-C lamp and negative ions).

Child Lock

Press and hold for 3 seconds to enable the child lock, preventing accidental operation by children. To unlock, press and hold again for 3 seconds.

Sleep Mode

Select the display light mode: bright, medium, or off.

Filter Replacement Button

The HEPA filter needs to be replaced when this indicator turns red. After installing a new filter, press and hold for 5 seconds to reset the filter life.

Wi-Fi

Press and hold for 5 seconds to configure. A solid Wi-Fi icon indicates a successful connection, while a blinking icon indicates that the device is waiting to connect.

Control panel for Kosmen KM-A99 Air Purifier

Wi-Fi Setup

1. Download the “Smart Life” or “Tuya Smart” app.
2. Press and hold the Wi-Fi button on the purifier for 5 seconds until the Wi-Fi indicator starts blinking.
3. Open the app, select “Add Device” → “Air Purifier”, and follow the on-screen instructions.
4. Ensure you are using a 2.4 GHz Wi-Fi network and place the purifier close to the router during setup.

Note: During setup, make sure all three devices—the air purifier, your smartphone, and the router—are in close proximity.

Operating Instructions

Operating Time

The purifier can run continuously throughout the day. However, it is recommended to let the device rest for 30 minutes after 8–10 hours of continuous operation.

Humidification Function

Before activating the humidification function, ensure the water tank is sufficiently filled. Operating the device with an empty or low water tank may cause damage.

Humidification Steps:

1. Remove the upper rear panel from the purifier.
2. Take out the humidification water tank.
3. Open the tank lid according to the label and add 1.5 liters of clean water through the water inlet.
4. After filling, reinsert the water tank, close the rear panel, and press the Humidify icon on the control panel to activate the humidification function.

Notes:

• Only fill water up to the maximum level to prevent overflow.
• A red Humidify icon indicates either the humidifying filter is missing or the water tank is empty or low. In this case, the humidification function will not operate.
• If the Humidify icon is illuminated but does not appear on the display, this indicates that the humidification function is off, even though there is still water in the tank.
• When both the Humidify icon and display panel are illuminated, the humidification function is activated and operating normally.
  
  

Filter Replacement Instructions

1. Turn off the device and unplug it from the power source.
2. Remove the upper and lower rear panels to access the filter compartment.
3. Take out the old filter and install the new filter in the correct position, ensuring it fits securely within the frame.
4. Reattach the upper and lower rear panels to their original positions.
5. Press and hold the “Reset” filter icon on the touch control panel for 5 seconds. A beep sound will confirm that the filter life has been successfully reset.

Notes:

• Recommended filter replacement interval: 6–9 months, depending on the environment.
• The replacement period may vary based on air quality: cleaner air may extend filter life, while poor air quality may shorten it.
• When the filter needs replacement, the indicator on the display panel will illuminate red and blink.
• Timely filter replacement ensures stable operation, prolongs device lifespan, and maintains air quality.

Important Notes for Using the Kosmen KM-A99 Air Purifier

Select a Purifier Suitable for Your Room Size

Choose an air purifier with adequate capacity for the room size to ensure optimal filtration performance. A purifier that is too small or underpowered may fail to meet your needs, resulting in inefficient air purification and unnecessary energy consumption.

Placement of the Purifier

To ensure optimal performance, observe the following guidelines:

• Place the purifier on a flat surface, at least 30 cm away from walls and obstacles to allow proper air circulation.
• Connect to the power source after positioning the purifier, plugging it into the socket securely.
• Avoid placing the purifier near doors, strong air drafts, or outdoors. Do not leave doors open while the purifier is operating.
• Keep the purifier on the floor, away from direct sunlight.
  Position the purifier near a power outlet to prevent the power cord from causing obstruction or tripping hazards.
• Do not place the purifier in areas with high humidity, such as bathrooms or near swimming pools.
• Do not use the purifier as a substitute for kitchen or bathroom exhaust fans.
• Do not insert fingers, sticks, or objects into the fan body, air intake, or air outlet.
• The only way to completely disconnect power is to unplug the device. Do not operate the purifier if the power cord is damaged.
  
  

Important notes for using Kosmen KM-A99 Air Purifier

Regular Filter Replacement to Maintain Purification Efficiency

Regular cleaning and replacement of filters help maintain optimal air purification performance. Use the purifier’s filter replacement indicator to monitor filter condition:

• Pre-Filter: Removable and washable; does not require periodic replacement.
• UV Filter: Does not require frequent replacement unless damaged.
• Activated Carbon Filter: Recommended to replace once a year.
• HEPA Filter: Replace every 6–9 months of use.

Do Not Move the Purifier While Operating

Moving the purifier while it is running may generate loud noise and damage internal components. Always turn off the device and handle it gently before relocation.

Proper Operation

If you are unsure of the room’s air quality, use the Auto mode. The purifier will automatically adjust fan speed and operating power based on real-time air quality, ensuring optimal filtration efficiency and energy savings.

Troubleshooting

Technical Specifications

Contact Support:

• Head Office: No. 27B, Street 12, Hiep Binh Ward, Ho Chi Minh City
• Hanoi Office: No. NV4.7, Cau Buou New Urban Area, Thanh Liet Ward, Hanoi City
• Da Nang Office: No. 41, Vo An Ninh Street, Hoa Xuan Ward, Da Nang City
• Da Lat Office: No. 38/7, Ba Thang Hai Alley, Xuan Huong Ward, Da Lat, Lam Dong Province
• Hotline: 0766 899 799 (North) - 0965 210 874 (South) - 0961 061 076 (Central Highlands) - 0935 696 695 (Central)
• Website: kosmen.com.vn