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N,N-Diethyl-meta-toluamide, also called diethyltoluamide or DEET ( / diːt /, from DET, the initials of di- + ethyl + toluamide), [ 1][ 2] is the oldest, one of the most effective and most common active ingredient in commercial insect repellents.
A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .
Formaldehyde is an intermediate in the oxidation (or combustion) of methane, as well as of other carbon compounds, e.g. in forest fires, automobile exhaust, and tobacco smoke. When produced in the atmosphere by the action of sunlight and oxygen on atmospheric methane and other hydrocarbons, it becomes part of smog.
Insect repellent. A mosquito coil. An insect repellent (also commonly called " bug spray ") is a substance applied to the skin, clothing, or other surfaces to discourage insects (and arthropods in general) from landing or climbing on that surface. Insect repellents help prevent and control the outbreak of insect-borne (and other arthropod ...
Infobox references. Ethyl butylacetylaminopropionate is an insect repellent whose trade name is IR3535 and was developed and commercialized by Merck KGaA (Germany). It is a colorless and odorless oil with a good skin feel in final products, and it is biodegradable. [ 1][ 2][ 3]
Filters made of paper , cloth (reusable), or plastic, metal or porcelain (permanent) are used. [nb 1] Paper and cloth filters require the use of some kind of filter holder, whereas filters made out of other materials may present an integral part of the holder or not, depending on construction. The filter allows the liquid coffee to flow through ...
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