| key specs | 
| Type | Room | Room | 
| Filter Type | HEPA | Pre-Filter, Activated Carbon, HEPA, Photo Catalyst Filter, UV Filter, Ionizer | 
| Coverage Area | 400 sq ft | 450 sq ft | 
| Air Flow Level | 225 cu.m/hr | 260 km/hr | 
| Power Consumption | 45 W | 58 W | 
| Noise Level | 40 dB | 50 dB | 
| general | 
| Brand | Gresta | Crusaders | 
| Model | GS-400 Room Air Purifier | XJ-3100 Room Air Purifier | 
| Model Name | GS-400 | XJ-3100 | 
| Type | Room | Room | 
| Filter Type | HEPA | Pre-Filter, Activated Carbon, HEPA, Photo Catalyst Filter, UV Filter, Ionizer | 
| Dimensions (mm) | 52.00 x 19.00 x 0.00 | 55.60 x 34.80 x 0.00 | 
| Depth | 32 | 19 | 
| Weight | 7.50 kg | 6.00 kg | 
| Material | Plastic | ABS Plastic | 
| Coverage Area | 400 sq ft | 450 sq ft | 
| Control Type | Touch | Touch, Remote | 
| Suitable For | Bed Rooms | Home, Office, House, Hospitals, Industries, Hotels, Gym, Banquet Hall, Conference Room, Restaurants, Lodges, Diagnostic Center | 
| Technology Used | 6 Sense Technology | Innovative Digital Display With Touch Panel, Eps Elementary Filter ,Hepa Filter 0.3 Micron ,Activated Carbon Filter,Photo-Catalyst Filter ,Uv Lamp,Ionizer, Smart Auto Mode, Odour & Dust Sensor, Smart Uv & Anion Mode Known As Function, Power Consumption – 58w | 
| Shade | - | Blue | 
| performance features | 
| Air Flow Level | 225 cu.m/hr | 260 km/hr | 
| Number of Speed Setting | 3 | 4 | 
| 3D Circulation Air Flow | Yes | No | 
| Ionizer | Yes | Yes | 
| UV Lamp | Yes | Yes | 
| Humidifier | No | No | 
| Clean Air Delivery Rate | - | 260 CMH | 
| convenience features | 
| Automatic Shut Off | Yes | - | 
| Portable | Yes | No | 
| Silent Mode | Yes | Yes | 
| Child Lock | Yes | No | 
| Timer | Yes | Yes | 
| Display Type | - | LED | 
| Other Convenience Features | - | Remote control, Auto Mode, Fan Speed Mode, Sleep Mode, Timer Mode, Function Mode-UV & Anion | 
| power features | 
| Power Requirement | 220V, 50HZ | 220 V,50 Hz | 
| Power Consumption | 45 W | 58 W | 
| additional features | 
| Noise Level | 40 dB | 50 dB | 
| Operating Temperature | degree C degree C | degree C degree C | 
| Adjustable Fan | Yes | Yes | 
| Retractable Cord | - | Yes | 
| Certification | - | CE, GS,UL,ETL,PSE | 
| warranty | 
| Not Covered in Warranty | BODY DAMAGE | Outside manufacturing defects and consumables filters | 
| Warranty Summary | - | 1 Year Manufaturer Warranty | 
| Covered in Warranty | - | Faulty Designs, Workmanship And Materials during Manufacturing | 
| Warranty Service Type | - | 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 |