Given for a 48m2 surface (thus 120m3 principle) when the TTK100S is given for double 92m2 (230m3) independently of the power it should be noted that the differences that compares the quality and uses: 1- The unit TTK 75S is lighter, more compact, more elegant form. 2- TTK 75S has two fan speeds (dehumidification capacity depends on the speed of party but I have yet to measure, installed in the basement I planned to measure the flow of water produced and temperature -hygrométrie continuously ...). On low speed it is barely audible and the faster it is a bit noisy fan, against the TTK 100S has a speed and it produces the sound of a desk fan at maximum speed. (The turbine is a wheel which produces no vibration noise in both cases). 3- With the Annex TTK75S water outlet is immediately accessible by removing a rear cap and plugging the supplied hose, water will drain from the rear 25cm from the ground to a tank to be installed instead of going to the internal tray. If the water drains into the inner tray until safety overflow stops, including if the full external exhaust traces of water in the tray. On TTK 100S it will remove (permanently) a side seal for discharging outwardly. It seems that it is not provided in this case that the external drain is full (not tested). 4- TTK75S the tray is provided with a water level viewing window (4L), a tilting the tray when the hanseatic TTK100S there is an internal fixed handle less easy to handle. 5- TTK75S a to the air intake filter, the TTK 100S has none. If the intake air has dust will be found in the TTK100S tray, o produce an almost pure distilled water without the presence of dust TTK75S.
Conclusion, I recommend to the interior and the rooms TTK75S which will certainly give excellent results at low speed in a bedroom or living space to 20 to 25m2 (and putting it on the high speed if present Accidental high humidity) when by TTK100S go up against the 90m2 but too noisy for a room (no vibrations but the breath of air). The TTK100S suit a basement where it will react during rapid variations humidity (day night shift semi buried eg with outside air inlet, rain - 100% humidity pr hot weather with air call when a door is opened on the floor etc.)
Note: To address the problem of water drainage in a basement without discharge to ground level (continuous operation and inability to empty the tray 2 times a day in the basement cellar) I with the 2 devices automatic evacuation pump with a small "empty bilge marine 12V 5l / min) who with 40mm diameter by 100 high) holds very well in stores, all with a level sensor and maintains electronic max-min level (att: the static level detection electrodes do not work in the produced distilled water which is very conductive, it takes small level contacts - 2 to 3cm long)
