Core Insights - The Shanghai Municipal Market Supervision Administration conducted a quality inspection of humidifiers, revealing that out of 35 batches tested, 7 were found to be non-compliant [2][5]. Summary by Categories Inspection Results - A total of 35 batches of humidifiers were inspected, with 7 batches failing to meet quality standards [2]. - Among the inspected products, 15 batches were sold through physical stores, with 1 batch failing, while 20 batches were sold online, with 6 batches failing [2]. - The inspection covered products from Shanghai, Anhui, and Zhejiang provinces, with 4 batches from Shanghai showing no non-compliance [2]. Non-compliance Analysis - The non-compliance issues primarily involved labeling and instructions, which are critical for consumer safety [5]. - Specific failures included the absence of necessary information such as rated voltage, power symbols, and manufacturer details, which could mislead consumers [5]. Consumer Guidance - Humidifiers are categorized into ultrasonic, cool evaporative (non-fog), and electric heating types, each with distinct advantages and suitability for different environments [6]. - Consumers are advised to prioritize well-known brands for better quality assurance and after-sales service [6]. - Key performance parameters to consider include humidification capacity (measured in mL/h), water tank capacity, noise levels, and safety features [7][8]. Additional Features and Considerations - Some humidifiers offer extra features like ion purification, aromatherapy, humidity display, and timer functions, which can enhance user experience [8]. - The price of humidifiers varies based on brand, type, and features, and consumers should balance cost with quality and performance [9].