Gasoline engine exhaust is mainly composed of carbon dioxide, hydrocarbons, nitrogen oxides, carbon monoxide, lead compounds, sulfur dioxide, and water vapor. Except that carbon dioxide and water vapor are non-hazardous substances, other emissions will cause pollution to the atmosphere. If not properly used, toxic gases such as carbon monoxide, nitrogen oxides, etc. may also cause serious harm to users. Use gasoline engines that meet emission regulations. Gasoline engines that are manufactured and sold in the formal channels are all subject to emission certification and Chinese emission labels are posted on the engines, while illegally modified machines may cause problems with poor discharge. Operate and maintain the gasoline engine as required by the engine manufacturer. Proper operation and maintenance can keep the engine in an optimal state, reducing or avoiding excessive exhaust due to poor combustion. In addition, do not run the engine in a closed environment to avoid tail gas poisoning. The impact of engine reliability on emissions performance can not be ignored. Some low-end engines, although cheap, may emit poor emissions after long periods of operation. Viruses and bacteria are everywhere. Preventing them in advance is the best way to reduce the risk of infection. Wearing a mask and washing hands frequently are crucial. The new type of coronavirus has the characteristics of contact transmission, and the fact that the virus exists on the doorknob of patients with pneumonia has also shown the necessity of paying attention to hand hygiene and wearing disposable protective gloves.
Whether it is going out to purchase daily necessities or buying through online platforms, it is inevitable to come into contact with "foreign" items, such as supermarket shopping carts, packaging bags, express packaging boxes, etc., and more things need to be touched after resuming work, such as It is inevitable to take public transportation, elevators, etc., these places may have been touched by patients or suspected patients. Wearing disposable protective gloves is an effective means to reduce the risk of infection when there is no condition to wash your hands at any time.
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