*NOTE* Sierra does NOT change masks during the video; she keeps the Dentec on throughout Sierra sits down wearing a nice, protective outfit consisting of her medical gown, blue vinyl apron, green Microflex extended cuff nitrile gloves, and of course, her half face mask Dentec respirator with P100 filters. During this video, she gives her thoughts on the 3M 6800 full face respirator, 3M Ultimate FX Respirator, MSA 1000 Millennium, and AO safety half mask. She also briefly discusses the different filter types.