Views: 0 Author: Site Editor Publish Time: 2021-12-09 Origin: Site
Freon is used as a refrigerant, foaming agent and cleaning agent because of its stable chemical properties, non-flammable and non-toxic. It is widely used in aerosol filling machine, household appliances, foam plastics, daily chemicals, automobiles, and fire fighting. Equipment and medicinal inhalation aerosols and other fields. But Freon is also the culprit of ozone layer destruction. Scientists estimate that one chlorine atom can destroy tens of thousands of ozone molecules.
In order to strengthen the awareness of CFC phase-out among the general public, patients, physicians and pharmacists, and to increase the attention and public awareness of CFCs phase-out industry plans and other activities, commissioned by the Ministry of Environmental Protection, Guangzhou Medical University Affiliated Hospital, Guangzhou Respiratory Diseases The institute undertook the publicity project of this plan.
According to the introduction, at present, there are many new non-CFCs medicinal inhalation aerosols in the world, such as the use of hydrofluoroalkanes (HFA) instead of CFCs, which are equally safe and effective, and have no ozone destructive effect.
According to statistics, inhaled preparations accounted for 65% of the treatment drugs for asthma and COPD, and in the research of new drug formulations, the proportion of inhaled preparations accounted for 25%. The market is huge.