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2. Atmospheric water generator - Wikipedia

   en.wikipedia.org/wiki/Atmospheric_water_generator

   State-of-the-art AWG for home use. An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point, exposing the air to desiccants, using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.

3. Underground pneumatic boring - Wikipedia

   en.wikipedia.org/wiki/Underground_pneumatic_boring

   A piercing tool uses compressed air to bore through the ground. Manufacturers have proprietary standards and control mechanisms. Compressed air is run to the piercing tool through a pneumatic hose. Additionally an oiler attachment is used to send oil along with the compressed air, similar to a jackhammer. Inside the piercing tool is a piston. A ...

4. Air well (condenser) - Wikipedia

   en.wikipedia.org/wiki/Air_well_(condenser)

   An air well or aerial well is a structure or device that collects water by promoting the condensation of moisture from air. [1] Designs for air wells are many and varied, but the simplest designs are completely passive, require no external energy source and have few, if any, moving parts.

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6. Air stripping - Wikipedia

   en.wikipedia.org/wiki/Air_stripping

   For instance, higher levels of NH3-N, a common contaminant in ground water, can take several hours of air stripping in order to be properly removed from water. In a recent study, it took 4 hours to for the air stripper to reach an equilibrium of efficiency in removing NH3-N elements, topping off at an 81.9% removal rate.

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9. Air source heat pump - Wikipedia

   en.wikipedia.org/wiki/Air_source_heat_pump

   Air-to-air heat pumps provide hot or cold air directly to rooms, but do not usually provide hot water. Air-to-water heat pumps use radiators or underfloor heating to heat a whole house and are often also used to provide domestic hot water. An ASHP can typically gain 4 kWh thermal energy from 1 kWh electric energy.