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2. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2][3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but ...

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

4. File:An HPS grow light in grow tent, with carbon filter and ...

   en.wikipedia.org/wiki/File:An_HPS_grow_light_in...

   The setup includes a carbon filter to remove any odors, and an exhaust system to cool the bulb and prevent the HPS from heating up the tent. Air from inside the tent is drawn through the carbon filter and over the bulb, then is exhausted out through the ducting using a powerful exhaust fan. Plants would be placed at the bottom of the grow tent.

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6. Chris Hemsworth - Wikipedia

   en.wikipedia.org/wiki/Chris_Hemsworth

   Christopher Hemsworth [3] was born on 11 August 1983 [4] in Melbourne, [5] to Leonie (née van Os), [6] an English teacher, and Craig Hemsworth, a social-services counsellor. [7][8] He is the second of three sons, following Luke (b. 1980) and preceding Liam (b. 1990); both of them are also actors. His maternal grandfather is a Dutch immigrant ...

7. Air ioniser - Wikipedia

   en.wikipedia.org/wiki/Air_ioniser

   An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle. Cations are positive ions missing one or more electrons, resulting in ...