Do you have a question about the Bionaire BAP9921 and is the answer not in the manual?
Overview of the control panel and its features, including indicator lights and buttons.
Technical details and performance metrics of the air purifier, such as CADR and noise level.
Initial setup steps for the air purifier, including filter preparation and placement.
How to use the air purifier for optimal performance, including fan speed and timer settings.
Cleaning and upkeep guidelines for the appliance, including exterior and interior cleaning.
Step-by-step guide for replacing the HEPA filter and resetting the indicator.
The Bionaire BAP9921 is an air purifier designed to provide pure indoor living by filtering the air in your home. This device is committed to offering everyday solutions to make users' lives easier, ensuring a healthier environment.
The primary function of the Bionaire BAP9921 is air purification. It utilizes a True HEPA filter to capture airborne particles, thereby improving air quality. The device features a 360-degree air intake, allowing it to draw in air from all directions for comprehensive filtration. Filtered air is then released through the top air vent.
The air purifier is equipped with a control panel that allows users to manage its various functions. The ON/OFF button serves a dual purpose: it turns the unit on or off and also cycles through the fan speed settings. There are three fan speed settings: I (Low), II (Medium), and III (High). For optimal air filtration, continuous operation on speed II (Medium) is recommended, as its durable motor is designed for long-term use. For quieter operation, such as in a bedroom, speed I (Low) is ideal. In situations with high levels of air pollution, speed III (High) can be selected to quickly circulate and filter the air.
A convenient timer function allows users to set the air filtration duration for 2, 4, or 8 hours. Once the selected time elapses, the unit automatically turns off. The timer can be canceled at any point by pressing the timer button.
The BAP9921 also includes a nightlight feature, indicated by an illuminated icon on the control panel, which activates a gentle light.
Before initial use, the air purifier needs to be prepared. This involves gently placing the unit on its side to access the filter chamber cover. If the filter is covered by a plastic bag, it must be removed before inserting the filter back into the unit and closing the cover. The unit should always be placed on a dry, stable, and firm surface, ensuring that the top air vent and air intake grille are not blocked. Once properly set up, the unit can be plugged into an appropriate electrical outlet.
Operating the device is straightforward. Users can select their desired fan speed by repeatedly pressing the ON/OFF button until the preferred setting (I, II, or III) is reached. The timer function can be activated to set a specific operating duration.
The device is designed for household use and should only be operated in rooms with temperatures between 10°C and 40°C. It is crucial to always turn the appliance off and unplug it when not in use, before moving or cleaning, or when changing the filter. To disconnect the unit, users should pull the plug, not the cord.
Safety precautions are paramount. The cord should be kept out of heavy traffic areas and never placed under rugs or near heat sources like registers, radiators, stoves, or heaters. The appliance should not be immersed in water or used near other liquids. It is not intended for use by children or persons with reduced physical, sensory, or mental capabilities without supervision. Children should be supervised to ensure they do not play with the appliance, and the appliance and its cord should be kept out of their reach. No objects should be dropped or inserted into the unit's openings. The appliance should not be operated with a damaged cord or plug, or if the motor fan fails, or if the unit has been dropped or damaged; in such cases, it should be returned to the manufacturer for examination or repair. It should not be placed on soft surfaces like beds or sofas, as this could block air inlets or outlets. The unit should be kept away from heated surfaces and open flames, and nothing should be placed on top of it.
Regular maintenance is essential to ensure the longevity and efficiency of the Bionaire BAP9921. Before any cleaning, the air purifier must be turned off and unplugged.
The exterior surface of the unit can be cleaned with a clean, damp cloth. The top air vent can be cleaned of dust using a small, soft brush. If cleaning the inside of the filter compartment is necessary, only a dry, soft cloth should be used to wipe it down. It is critical not to allow moisture to come into contact with the main housing of the air purifier. Harsh cleaning agents such as detergents, gasoline, glass purifier, furniture polish, paint thinner, or other household solvents should never be used on any part of the appliance.
The True HEPA filter requires replacement approximately every 8-12 months. A Filter Replacement Indicator light, represented by a blinking icon, will signal when it's time to change the filter. To replace the filter, the unit must first be turned off and unplugged. The air purifier should be gently placed on its side to expose the filter chamber cover. The chamber cover can be unlocked and opened by pushing a button in the direction of an arrow. The used HEPA filter can then be pulled out and replaced with a new one. After inserting the new filter, the cover should be closed and locked, and the air purifier placed back on a flat surface. Finally, the unit can be plugged in, and the Filter Replacement Indicator should be reset by simultaneously pressing and holding the ON/OFF and Timer buttons for 3 seconds until a beep is heard. Replacement filters (BAPF9921) can be purchased through local service centers.
Troubleshooting information is provided to address common issues. If the unit is not working, users should check if it's properly plugged in, turned ON, and if the filter is correctly installed. If there's a decrease in airflow, users should ensure nothing is blocking the air intake grille or filtered air outlet, check the filter's condition, and remove any plastic wrapping. If the unit is making a loud noise, users should verify that the unit is firmly positioned and that all plastic packaging has been removed from the filter chamber.
| Coverage Area | Up to 300 sq. ft. |
|---|---|
| Air Changes per Hour | 5 |
| Noise Level | Quiet operation |
| Dimensions | 14.5 x 10.5 x 22.5 inches |
| Weight | 11 lbs |
| Number of Speeds | 3 |
| Filter Type | HEPA |












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