| key specs | 
| Type | Room | Room | 
| Filter Type | HEPA, Ionizer | Pre-Filter, Activated Carbon, HEPA, Cold Catalyst Filter, UV Filter, Ionizer | 
| Coverage Area | 320 sq ft | 300 sq ft | 
| Air Flow Level | 0 km/hr | 180 km/hr | 
| Power Consumption | 58 W | 43 W | 
| Noise Level | - | 45 dB | 
| general | 
| Brand | Oster | Crusaders | 
| Model | OAP1551B-IN Room Air Purifier | XJ-2900 Room Air Purifier | 
| Model Name | OAP1551B-IN | XJ-2900 | 
| Type | Room | Room | 
| Filter Type | HEPA, Ionizer | Pre-Filter, Activated Carbon, HEPA, Cold Catalyst Filter, UV Filter, Ionizer | 
| Dimensions (mm) | 69.00 x 16.00 x 0.00 | 49.60 x 32.00 x 0.00 | 
| Depth | 26 | 19.5 | 
| Weight | 6.40 kg | 4.50 kg | 
| Coverage Area | 320 sq ft | 300 sq ft | 
| Control Type | Touch & Remote | Touch, Remote | 
| Suitable For | Home, Office | Home, Office, House, Hospitals, Industries, Hotels, Gym, Banquet Hall, Conference Room, Restaurants, Lodges, Diagnostic Center | 
| Technology Used | British Allergy Foundation Approved | Best in class 6 Stage filtration system, Digital Display : When pressing on the power button,the angular design will flash in the digital screen and the machine is in stand-by mode., TIMER MODE :When pressing on the Timer button, the Timer starts from 1-12 hours. The power will be turned off when time expires., FAN Speed Adjustment : The Speed control button circulates from low, medium, and high. The speed is shown in the digital screen., SLEEP MODE : When pressing on the Sleep button, the machine will be at low speed .The speed and sleep buttons are controlled in a mutually exclusive manner. When one is turned on, the other is turned off., ANION MODE: Press the Anion button to turn on the Anion generator. The icon will be shown on the digital screen when it is turned on., STERILIZE MODE: Press the Sterilize button to turn on the UV germicidal light. The icon will be shown on the display screen when it is turned on., REMOTE CONTROL: The product is equipped with a remote controller powered by 2AAA batteries. | 
| Shade | - | Blue | 
| Material | - | ABS Plastic | 
| performance features | 
| Air Flow Level | 0 km/hr | 180 km/hr | 
| Number of Speed Setting | 3 | 3 | 
| 3D Circulation Air Flow | No | No | 
| Ionizer | Yes | Yes | 
| UV Lamp | - | Yes | 
| Clean Air Delivery Rate | - | 180 CMH | 
| Humidifier | - | No | 
| Other Performance Features | - | Odor Sensor | 
| convenience features | 
| Portable | Yes | Yes | 
| Silent Mode | Yes | Yes | 
| Indicators | - | Fan speed Indicator, Timer Mode Indicator, Sleep Mode Indicator, Anion Mode Indicator, Sterilize Mode Indicator | 
| Automatic Shut Off | - | No | 
| Display Type | - | LED | 
| Child Lock | - | No | 
| Timer | - | Yes | 
| Other Convenience Features | - | Portable, Remote Control, Instruction Manual . | 
| power features | 
| Power Requirement | 230 V, 50 Hz | 220 V,50 Hz | 
| Power Consumption | 58 W | 43 W | 
| Other Power Features | - | Power Touch Panel | 
| additional features | 
| Operating Temperature | degree C degree C | degree C degree C | 
| Certification | British Allergy Foundation Approved | CE, GS,UL,ETL,PSE | 
| Other Features | Ionizer Function Light & On-Off Light Indicator, Filter Need To Replace Every 4 To 6 Month Depending On Air Quality & Usage, Filter Indication Light To Replace Filter, Help To Reduce Pollen, Dust, Pet Dander, Mould Spores & Organic Fumes, Tobacco Smoke | - | 
| Noise Level | - | 45 dB | 
| Retractable Cord | - | Yes | 
| Adjustable Fan | - | Yes | 
| warranty | 
| Not Covered in Warranty | Warranty Does Not Cover Any Plastic Part/Body Or Damage Caused To The Product Due To Improper Installation By Customer, Normal Wear And Tear. | Outside manufacturing defects and consumables filters | 
| Warranty Service Type | On- Site Service | 1 Year warranty.It's a self serviceable product and requires basic cleaning which can be done time to time on your own. In case of any complaints the product comes with a warranty of 1 Year | 
| Warranty Summary | - | Customer needs to call Crusaders helpline number 011-41650312/13 | 
| Covered in Warranty | - | Faulty Designs, Workmanship And Materials during Manufacturing |