Hai cercato: Colonne cromatografiche
Disposable respirators are designed to provide reliable protection while maintaining a lightweight, secure fit with comfort features. These respirators provide comfortable protection against certain solid and liquid particles, and certain models provide an exhalation valve to reduce heat and humidity build-up inside the respirator. Filtration efficiency differs between models, with minimums rated for meeting OSHA regulations set at those specific levels for protection against solid and liquid aerosols. Protection against oils depends on selected model.
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