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2. Kitchen hood - Wikipedia

   en.wikipedia.org/wiki/Kitchen_hood

   A kitchen hood in a small apartment. A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [1]

3. Fume hood - Wikipedia

   en.wikipedia.org/wiki/Fume_hood

   Also termed "walk-in" fume hoods, floor-mounted fume hoods have a working area that extends from the floor to the bottom of a connected exhaust duct for the use of tall equipment. Despite the name of "walk-in", entering a floor-mounted fume hood in operation while it contains hazardous materials poses a significant risk to the user; [ 63 ] they ...

4. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

5. Biosafety cabinet - Wikipedia

   en.wikipedia.org/wiki/Biosafety_cabinet

   Each type's requirements are defined by NSF International Standard 49, [3]: 31 which in 2002 reclassified A/B3 cabinets (classified under the latter type if connected to an exhaust duct) as Type A2, [5] and added the Type C1 in the 2016 standard. [8]

6. Air handler - Wikipedia

   en.wikipedia.org/wiki/Air_handler

   Larger air handlers may be several meters long and are manufactured in a sectional manner and therefore, for strength and rigidity, steel section base rails are provided under the unit. [ 2 ] Where supply and extract air is required in equal proportions for a balanced ventilation system, it is common for the supply and extract air handlers to ...

7. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   Floor registers generally have a grille strong enough for a human being to walk on without damaging the grille. It is rare to find a floor register installed less than 6 inches (15 cm) from the corner of a room. [8] When a floor register is not practical or desired, a wall register is used. The correct placement of wall heating registers is ...