1. CE approved for protection against certain organic vapors or acid gases
2. Swept-back design allows an enhanced field of view and comfort
3. Thread compatibility allows use with many half and full facepiece designs
4. Wide range of applications reduces inventory needs
5. Simple installation and usage requirements reduce training needs
Full Respirator Mask are the most common ones, protecting the user from droplets and splashes. In Europe, BFE1, BFE2 and Type R masks can be found. Effective protection lasts around 4 hours to 8 hours maximum.
Masks should be disposed of in a trashcan after usage. N95 respirators can filter 95% of the air particles, protecting the wearer from vapours or aerosols. Some respirators are reusable (by chaning the filter inside). According to the European standard, you can find FFP1, FFP2 and FFP3 respirators, FFP3 being the most filtering one. These masks too are efficient for 4 to 8 hours maximum.
Standard surgical masks are as effective as full respirator mask (e.g. N95, FFP2, FFP3) for preventing infection of healthcare workers in outbreaks of viral respiratory illnesses such as influenza. No head to head trial of these masks in COVID-19 has yet been published, and neither type of mask prevents all infection. Both types of mask need to be used in combination with other PPE measures.
full respirator masks are recommended for protection during aerosol generating procedures (AGPs). Rapid reviews on wider PPE measures, and what counts as an AGP, are ongoing.