“液体口罩”网上热销 医生提醒：科学防护不可替代

Core Viewpoint - The "liquid mask" nasal spray has gained popularity online, but its reliability as a protective measure is questioned by both the public and professionals [1][2]. Group 1: Product Overview - The "liquid mask" is marketed as a nasal spray that forms a protective barrier in the nasal cavity, claiming to reduce the risk of droplet exposure and prevent illnesses like colds and flu [1]. - Prices for the product range from 35 yuan to 188 yuan, which is significantly higher than traditional masks [1]. Group 2: Public Perception - Some consumers express interest in the product for its convenience, especially for those who wear glasses and find traditional masks fogging up their lenses [2]. - However, opinions vary among the public regarding its effectiveness and necessity [2]. Group 3: Medical Perspective - Medical professionals clarify that the "liquid mask" is not classified as a drug or medical device, but rather as a common consumer product [2]. - There is a lack of clinical validation or rigorous testing to support the claims of high blockage rates made by the product [2]. - Experts emphasize that the product only protects the nasal cavity and does not address oral transmission of pathogens, highlighting the limitations of its protective capabilities [2]. Group 4: Recommended Health Practices - Medical advice suggests that effective protection against illnesses should focus on vaccination, good hygiene practices, and the proper use of medical masks [2].