KJ20FE-BD - Air purifier Cotech - Free user manual and instructions
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| Product Type | Air Purifier |
| Model | KJ20FE-BD |
| Brand | Cotech |
| Dimensions (H x W x D) | 43 x 20 x 20 cm |
| Weight | 2.5 kg |
| Power Supply | 220-240 V ~ 50 Hz |
| Power Consumption | 30 W |
| Coverage Area | Up to 20 m² |
| Filtration System | Pre-filter, HEPA filter, Activated carbon filter |
| Fan Speeds | 3 speeds (Low, Medium, High) |
| Timer | 1-8 hours |
| Noise Level | 25-50 dB |
| Air Quality Indicator | Yes (color-coded LED) |
| Filter Replacement Indicator | Yes |
| Night Mode | Yes (dimmed lights, quiet operation) |
| Maintenance | Clean pre-filter every 2 weeks; replace HEPA filter every 6-12 months |
| Safety Features | Overheat protection, child lock |
| Spare Parts | Replacement HEPA filter, activated carbon filter |
| Energy Efficiency Class | A |
Frequently Asked Questions - KJ20FE-BD Cotech
How do I turn on the air purifier?
Plug the purifier into a power outlet and press the power button on the control panel. The unit will start in automatic mode.
How often should I replace the HEPA filter?
The HEPA filter should be replaced every 6 to 12 months, depending on usage and air quality. The filter replacement indicator will alert you when it's time.
Can I wash the filters?
Only the pre-filter is washable. Rinse it with water and let it dry completely before reinserting. The HEPA and activated carbon filters are not washable and must be replaced.
What does the air quality indicator mean?
The LED ring changes color: blue for good air quality, green for moderate, yellow for poor, and red for very poor. The purifier adjusts fan speed accordingly.
Is the air purifier noisy?
Noise levels range from 25 dB (low speed) to 50 dB (high speed). Night mode operates quietly at around 25 dB, suitable for sleeping.
How do I reset the filter replacement indicator?
After replacing the filters, press and hold the filter reset button for 3 seconds until the indicator light turns off.
Can I use the purifier in a room with pets?
Yes, the pre-filter captures pet hair and dander. Clean the pre-filter more frequently if you have pets to maintain performance.
What is the recommended room size for this purifier?
The purifier is designed for rooms up to 20 m² (approximately 215 sq ft). For larger rooms, performance may be reduced.
How do I activate the child lock?
Press and hold the child lock button for 3 seconds. The control panel buttons will be disabled. Repeat to deactivate.
Where can I buy replacement filters?
Replacement filters (model: Cotech KJ20FE-BD filter set) are available from the Cotech website or authorized retailers. Check your user manual for part numbers.
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USER MANUAL KJ20FE-BD Cotech
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Product information
Brand : Cotech
Model : KJ20FE-BD
Category : Air purifier