3M N100 Disposable Respirator is certified to provide at least 99.97% filter efficiency against solid and liquid particles. It comes with buckle adjustable straps, a 3M Cool Flow exhalation valve and a conformable face seal make this a comfortable, durable respirator. It is lightweight and comfortable which includes all filter design. It meets NIOSH 42 CFR 84 requirement and reduces potential for eyewear fogging. It is applicable in pharmaceutical, welding, brazing, soldering, torch cutting, metal pouring. Do not use for gases and vapors, including those present in paint spraying operations, oil aerosols, asbestos or sandblasting.