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  2. Air pollution measurement - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_measurement

    They use fans to suck in the air, filter it, and either analyze it automatically there and then or collect and store it for later analysis in a laboratory. Active sensors use either physical or chemical methods. [8] Physical methods measure an air sample without changing it, for example, by seeing how much of a certain wavelength of light it ...

  3. Toilet cleaner - Wikipedia

    en.wikipedia.org/wiki/Toilet_cleaner

    Toilet cleaner is sprayed around the rim and into the bowl of the toilet prior to the use of the toilet brush. The toilet brush is used to scrub the toilet, removing stubborn stains and biological debris. In recent times, automatic toilet bowl cleaners that clip onto the rim of the toilet and clean with every flush have also become prevalent.

  4. Toilet (room) - Wikipedia

    en.wikipedia.org/wiki/Toilet_(room)

    A small room with a flush toilet.A toilet brush (hidden in a decorative holder) and a toilet roll holder for toilet paper can be seen to the right of the flush toilet.. A toilet is a small room used for privately accessing the sanitation fixture for urination and defecation.

  5. Toilet plume - Wikipedia

    en.wikipedia.org/wiki/Toilet_plume

    A toilet plume is the cloud-like dispersal of potentially infectious sewage particles as a result of flushing a toilet. [1] These particles rapidly rise out of the bowl and several feet into the air after flushing. These particles go on to spread onto surfaces like floors and counters; or objects like hand towels, bathmats or toothbrushes.

  6. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  7. Toilet paper - Wikipedia

    en.wikipedia.org/wiki/Toilet_paper

    A full roll of toilet paper Toilet roll and toilet roll holder; the paperboard center of a spent roll is visible on the holder.. Toilet paper (sometimes called toilet/bath/bathroom tissue, or toilet roll) [1] is a tissue paper product primarily used to clean the anus and surrounding region of feces (after defecation), and to clean the external genitalia and perineal area of urine (after ...

  8. Portable toilet - Wikipedia

    en.wikipedia.org/wiki/Portable_toilet

    A portable urine-diverting dry toilet, marketed in Haiti by Sustainable Organic Integrated Livelihoods under the name "EkoLakay". A portable or mobile toilet (colloquial terms: thunderbox, porta-john, porta-potty or porta-loo) is any type of toilet that can be moved around, some by one person, some by mechanical equipment such as a truck and crane.

  9. Drinking water - Wikipedia

    en.wikipedia.org/wiki/Drinking_water

    Drinking water that is supplied through a tap ()Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation.