N95-1804/1805: economical folding medical N95 mask, very portable, 1805 is the old version, is being replaced by 1804, there are 1805S and 1804S versions suitable for small face people.  (PDF, 1.1MB), Quick Reference Guide - Disposable Respirators Each 3M N95 mask/particulate respirator in our catalog is approved by the National Institute of Occupational Safety and Health. It produces a lot of high-quality industrial products, as well as medical supplies and household goods. R series masks are resistant to oil mist; P series masks are resistant to oil and can be used wherever protection is required in an oil environment. WARNING: These respirators help reduce exposures to certain airborne particulates. 3M N95 Mask Buying Guide, Types of Respirator Masks. At 3M, we discover and innovate in nearly every industry to help solve problems around the world. The following is a 3M official website N95 mask ~ P100 mask model selection guide for your reference: Economical N95 masks: 8200, 8210, 8110S, 8210plus, More comfortable N95 masks with breathing valve: 8511, 8210V, 8211, 9211+, Foldable portable N95 mask: 9210+, 9211+, 9105, 9105S, R95 masks capable of filtering oily particles at the same time: 8240, 8246, 8247, Very oil-resistant P95 masks: 8271, 8576, 8577, Highest protection effect N100, P100 masks: N100-8233, P100-8293. $18.49 $ 18. 49 ($1.85/Item) Get it as soon as Thu, Dec 3. R95-8240: Economical R95 mask with anti-collapse housing design for increased durability. P95-8576: P95 mask for acid gas, equipped with breathing valve, M nose clip and braided headband, comfortable and durable. 3M uses a variety of innovative technologies and features to help you meet your respiratory protection and comfort needs.  (PDF, 208.2KB), 3M™ Disposable Respirator Brochure The 9210+ N95 mask does not have a breathing valve, and the 9211+ version has a breathing valve. P95-8271: Equipped with breathing valve, M nose clip and braided headband for added comfort. 3M™ Aura™ Particulate Respirator 9210+, N95, 3M™ Aura™ Particulate Respirator 9210+/37192, N95, 240 ea/Case, 3M™ Aura™ Particulate Respirator 9210+ and 9211+ N95 Brochure The most popular N95 mask with a breathing valve on the market. Respirador 8210 para paríiculas clasificación NIOSH N95. It produces a lot of high-quality industrial products, as well as medical supplies and household goods. Most protective masks are clearly marked on the outside of the mask, which can be used to identify the model of the outlet mask, NIOSH certification and other information. A Rain below will introduce the differences between 3M mask models. Can also be used to help reduce inhalation of certain airborne biological particles like mold, Bacillus anthracis, Mycobacterium tuberculosis, etc. 3M(TM) Aura(TM) Particulate Respirator 9210+, N95, 3M(TM) Aura(TM) Particulate Respirator 9210, N95. 3M™ VFlex™ Particulate Respirator, 9105, N95 Technical Specifications (PDF, 362.1KB) Quick Reference Guide - Disposable Respirators (PDF, 4.9MB) FAQ: 3M Filtering Facepiece/Disposable Respirator Storage Conditions and Shelf Life (PDF, 152.8KB) The welded and metal-cast versions of the N95 masks are all made of fire-resistant material, which can filter out metal fumes, and all have 3M Cool Flow breathing valves. REDUCED EYEWEAR FOGGING: Designed to direct exhaled air away from the nose panel, helping reduce eyewear fogging, COMFORTABLE: Braided headbands help keep respirator securely in place and minimize pulling of hair, LOW PROFILE DESIGN: Curved low profile design conforms well to nose and eye contours, allowing more room for eyewear, Individual packaging and flat fold design provides convenient storage and portability, Adjustable noseclip helps provide a custom secure seal, Innovative chin tab designed for ease of positioning, donning & adjustment.  (PDF, 1.2MB), 3M 9210, 9210+ N95 Particulate Respirator They are practical and convenient to use. Isn't the version that can filter 99.97% particles more realistic? As for whether you want to worry about germs coming in from the open valve when the air flow is exchanged, it's a matter of opinion. The sick / probably sick person wears a breathing valve N95 mask, germs may flow out?