The biOrb AIR is a fully automated terrarium that creates the perfect micro-climate for growing tropical plants. This micro-climate replicates the natural conditions under a tropical forest canopy enabling many species of plants such as Orchids to thrive as nature intended. No daylight required - can locate anywhere The clever LED light incorporates six high power LED's arranged in a circular array at the top of the biOrb AIR. This light array enables plants to grow naturally and not bend as they would to a single light source. The light intensity simulates natural daylight so the biOrbAIR can be located anywhere. Clean fresh air in and out A silent continuously running fan draws clean fresh air into the micro-climate through a replaceable carbon filter. This fresh air is circulated within the biOrb AIR then expelled via the filter as clean air to the atmosphere. Automatic humidity and moisture control The biOrb AIR incorporates an accurate sensor that detects when the humidity is dropping and automatically turns on the water vapour misting system to maintain a preset 75% relative humidity. So easy to maintain Just add Humidimist water to "top up" the misting reservoir as and when needed. The biOrb Air lights will flash to let you know when a "top up" is required. That's all - the rest is automatic. Capillary matting - hydrates the compost. The capillary matting provides a method of drawing moisture up from the base water reservoir. This method controls the amount of moisture (water) being absorbed by the compost and prevents plant root saturation and possible rotting. Water level indicator Discreet and easy to read indicator for checking the water level in the base so the plant roots stay perfectly moist. Can also be used to empty the water out from the base.