| 摘要 |
Improved planter inserts to be used in conjunction with ordinary or decorative planters for growing houseplants in potting soil or hydroponically in pebbles or other potting medium for the purpose of reducing the work of maintaining the plants and improving the characteristics of purifying ambient air quality. A separate water reservoir is attached to the planter insert such that the water level in the planter insert is maintained constant at all times. The watering frequency is reduced because of the large water reservoir. Additional features may be added to the planter insert to further enhance the effectiveness of air purification by the plants. A simple planter insert is used to increase the interface areas of ambient air with the potting medium and the root system. The second planter insert includes a circulation fan to increase the circulation of air through the potting medium and the root system. The third planter insert includes a lamp with or without a circulation fan. The addition of a lamp will help to sterilize the air.The non-spill water reservoir can be made to turn over to nearly 180 degrees after refill without spilling its content thus making the insert of water reservoir easy. For very large planter inserts and water reservoirs, the removal of water reservoir for refill becomes impractical. A special designed feature of the improved water reservoir allows the refill of water reservoir in place without spillage.A specially designed water level indicator is also provided to indicate water level within a small viewing area of the water reservoir.
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