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Power tool

A power tool is a tool that is actuated by an additional power source and mechanism other than the solely manual labor used with hand tools. The most common types of power tools use electric motors. Internal combustion engines and compressed air are also commonly used. Tools directly driven by animal power are not generally considered power tools. Power tools can produce large amounts of particulates, including ultrafine particles. Airborne particulate matter is a Group 1 carcinogen.

Power tools are used in industry, in construction, in renovation, in the garden, for housework tasks such as cooking, cleaning, and around the house for purposes of driving (fasteners), drilling, cutting, shaping, sanding, grinding, routing, polishing, painting, metalworking, woodworking, heating and more.

Using hand and power tools to cut plastic materials during construction activities can generate microplastics. Airborne microplastics is a type of particulates. Further studies are needed "on the different types of cutting tools and their associated MP production".

Power tools are classified as either stationary or portable, where portable means hand-held. Portable power tools have obvious advantages in mobility. Stationary power tools, however, often have advantages in speed and precision. A typical table saw, for instance, not only cuts faster than a regular hand saw, but the cuts are smoother, straighter, and more square than what is normally achievable with a hand-held power saw. Some stationary power tools can produce objects that cannot be made in any other way. Lathes, for example, produce truly round objects.

Stationary power tools for metalworking are usually called machine tools. The term machine tool is not usually applied to stationary power tools for woodworking, although such usage is occasionally heard, and in some cases, such as drill presses and bench grinders, exactly the same tool is used for both woodworking and metalworking.

While hand-held power tools are helpful, they also produce large amounts of noise, vibrations and particulates including ultrafine particles.

Airborne particulate matter is a Group 1 carcinogen. Particulates are the most harmful form (other than ultra-fines) of air pollution as they can penetrate deep into the lungs and brain from blood streams, causing health problems such as heart disease, lung disease, and premature death. There is no safe level of particulates. A 2013 study concluded that "particulate matter air pollution contributes to lung cancer incidence in Europe". Worldwide, exposure to PM2.5 contributed to 4.1 million deaths from heart disease, stroke, lung cancer, chronic lung disease, and respiratory infections in 2016. Overall, ambient particulate matter is one of the leading risk factor for premature death globally.

Many construction tasks create dust. High dust levels are caused by one of more the following:

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