1. Designed if ranked (from high to low) according to their own protection capacity priority: n95 mask = kn95 mask = medical surgical mask > general medical mask > general cotton mask (general cotton mask is ineffective against viral protection)。
2. What types of masks may be worn in different applications: to get a mask, to look first at the text and pictures on the overpack, and to look for “product standards”, e. G. Product standard yy0469。
One single-time use of a medical mask (yy/t0969): recommends daily use by the public and medical institutions。
2 medical surgical mask (yyy0469): the protective effect is better than the one-time use of a medical mask, which is recommended to the public, including patients with suspected cases, public transport division crews, taxi drivers, sanitation workers, public service staff. This type of mask also protects patients from contamination during surgery and provides medical personnel with basic isolation against blood and body fluid spills。
3 medical protection masks (gb19083): referral to fever clinics, ambulatory wards and transfer of patients diagnosed with new coronary virus infections. When resources are scarce, over-protection by the public is not recommended and may be reserved for front-line medical personnel。
4 industrial particle protection mask (gb2626): the resistance of particulate matter is similar to that of medical protection mask and can be used for industrial dust and haze protection. Because of the lack of blood for this type of mask, it is not recommended to be worn by the public and cannot be used in health-required areas such as operating theatres。
5 protection masks (plus p100 filtration, gb2626 or niosh42, cfr part 84): the level of protection is higher than that of a medical mask and is recommended for use in tubes, endoscopy, etc., for diagnosis or suspected cases。
The n95 masks, although not a medical mask, can also serve as a good virus prevention function by meeting the 95% filtering efficiency criteria and by better aligning them with the ministry of human dignity。
4. There is a clear barrier to pneumonia from this new coronary virus infection: medical surgical masks and filtering of non-oil particles, such as n95, kn95, ds2, ffp2 etc。
How can citizens choose to prevent the new coronary virus
An n95 mask without a breathing valve is recommended for selection. Since doctors and patients wearing masks cannot guarantee that they are healthy and non-virus-free (infectious during incipient periods), while air currents with ventilating valves are only one-way protection, which is not a good way to cut off the transmission path. From the point of view of disease control, two-way protection is the most correct way to do so, so n95 masks with respiratory valves are not recommended for use in current medical institutions. #the medical media superpower #
