COVID-19: Priority Use of N95 Mask or Double Mask
نویسندگان
چکیده
منابع مشابه
Comparison of the Use of Mask or Chamber in Inducing Anesthesia with Isoflurane in Rabbits
Objective- To study the effects of Isoflurane in inducing anesthesia and comparing mask and chamber induction anesthesia in rabbits for the first trial in Iran. Design- Experimental design. Animals- 20 female adult New Zealand White rabbits. Procedures- Animals were divided randomly into two groups. A 40 cm3 Chamber was used in group A with 4-5% concentration of isoflurane and a face mask ...
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Background and aims: Coronaviruses are important pathogens in humans and animals. In late 2019, a new coronavirus was identified as the cause of a group of pneumonia cases in Wuhan, Hubei Province, China. The disease spread rapidly, resulting in epidemics in China and reports of sporadic cases worldwide. In February 2020, the World Health Organization (WHO) identified COVID-19, which stands for...
متن کاملExhaled Air Dispersion during Coughing with and without Wearing a Surgical or N95 Mask
OBJECTIVES We compared the expelled air dispersion distances during coughing from a human patient simulator (HPS) lying at 45° with and without wearing a surgical mask or N95 mask in a negative pressure isolation room. METHODS Airflow was marked with intrapulmonary smoke. Coughing bouts were generated by short bursts of oxygen flow at 650, 320, and 220L/min to simulate normal, mild and poor c...
متن کاملSingle-Mask Double-Patterning Lithography
This paper proposes shift-trim double patterning lithography (ST-DPL), a cost-effective method for achieving 2× pitchrelaxation with a single photomask (especially at polysilicon layer). The mask is re-used for the second exposure by applying a translational mask-shift. Extra printed features are then removed using a non-critical trim exposure. The viability of ST-DPL is demonstrated. The propo...
متن کاملA scavenging double mask to reduce workplace contamination during mask induction of inhalation anesthesia in dogs
BACKGROUND Workplace contamination by the use of volatile anesthetic agents should be kept to a minimum if a potential health hazard is to be minimised. Mask induction of animals is a common procedure. The present study investigates the efficiency of a novel scavenging double mask in reducing waste gas concentrations in the breathing zone of the anesthetist performing this procedure. METHODS ...
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ژورنال
عنوان ژورنال: International Archives of Otorhinolaryngology
سال: 2021
ISSN: 1809-9777,1809-4864
DOI: 10.1055/s-0041-1728716