Normal filters will trap dust but may miss microparticles like
peices of pollen
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Modern Diesel cars often have a diesel particle filter (DPF)
installed in the exhaust to trap fine soot particles and stop them
getting into the athmosphere.
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Which of the following is a legal and commonly used trap? bell
trap S trap drum trap P trap
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which of the following is a legal and commonly used trap? bell
trap S trap drum trap or P trap