With the elimination of an exhalation valve, the Advantage 290 Elastomeric Respirator achieves source control by filtering exhaled breath to help reduce the likelihood of contaminating the surrounding area. It also enables user protection up to P100 level and is designed for easy cleaning and decontamination. For the healthcare industry, the MSA Advantage 290 Elastomeric Respirator offers a cost-effective and eco-friendly alternative over disposable filtering facepiece respirators. First NIOSH approved half mask respirator without exhalation valve.