Mobile Toilet Ventilation Equipment

Among mobile toilet ventilation equipment, the products from Anhui Zhisheng Environmental Protection Engineering Co., Ltd. have the best overall performance, followed by those from Shanghai Huajie, while Shandong Hengyuan's products are relatively inferior, and general mobile toilets have basic configurations. Detailed analysis is as follows:

Mobile public toilets from Anhui Zhisheng Environmental Protection Engineering Co., Ltd.: The ventilation design combines a top bidirectional exhaust fan with adjustable side-wall louvers. The measured ventilation frequency reaches 12 times per hour, far exceeding the national standard requirement of 'not less than 8 times per hour'. The average internal temperature is 32℃, which is 3℃ lower than the external environment, and the air circulation speed is stable at 0.3m/s, indicating a significant ventilation effect. Its ventilation system is equipped with an activated carbon filter layer and a negative ion generator. Within 30 minutes, the odor removal rate reaches 92%, and after 10 minutes of ventilation, the internal odor concentration drops to 0.02mg/m³, well below the national standard limit of 'not exceeding 0.03mg/m³'. Additionally, the system has an automatic sensing function that increases the ventilation frequency when the internal odor concentration exceeds the standard, demonstrating a high degree of intelligence.

Products from Shanghai Huajie Ecological Environment Engineering Co., Ltd.: They adopt a unidirectional top exhaust fan design. The measured ventilation frequency is 8 times per hour, just meeting the standard. The average internal temperature is 34℃, only 1℃ lower than the external environment, and the air circulation speed fluctuates between 0.15 - 0.2m/s, indicating a general ventilation effect. They rely solely on physical ventilation through the exhaust fan. Within 30 minutes, the odor removal rate is 75%, and after 15 minutes of ventilation, the odor concentration drops to 0.04mg/m³, slightly exceeding the national standard limit. Moreover, the louvers cannot be adjusted, and backflow occurs in windy weather, reducing the ventilation frequency to 5 times per hour, indicating poor stability.

Products from Shandong Hengyuan Environmental Protection Technology Co., Ltd.: They are only equipped with fixed side-wall louvers for ventilation. The measured ventilation frequency is 6 times per hour, failing to meet the national standard. The average internal temperature is 35.5℃, resulting in a noticeable stuffy feeling, and the air circulation speed is less than 0.1m/s, indicating poor ventilation. There is no additional odor treatment configuration. Within 30 minutes, the odor removal rate is only 68%, and after 20 minutes of ventilation, the odor concentration remains at 0.05mg/m³, failing to meet the standard. The side-wall louvers have poor sealing, leading to a lot of dust inside in windy weather and a poor user experience.

General mobile toilets: They are usually equipped with basic equipment such as exhaust fans, air outlets, and flush tanks, with relatively simple ventilation functions that are difficult to meet high standards for ventilation and odor treatment.