Our company


Vaccination is the most cost-effective way to prevent infectious diseases, but in low- and middle-income countries, there is still a big  coverage gap of the last dose in primary immunization. Only the counteies, multilateral health promoters and industries work together, we can deliver the health protection to the last mile. Therefore, the company has been focusing on the primary immunization of low- and middle-income countries since its inception, and has formed a comprehensive solution to serve all the senarios in the primary immunization chain: vaccine cold chain, vaccination and waste management, clinic power supply and water treatment. 

The products and solutions have been introduced to more than 40 countries around the world through public procurement channels such as UN organizations, NGOs as well as government and private procurement. With the joint efforts of all stakeholders, the gap in primary immunization, the most important and most vulnerable chain has been bridged.


After more than ten years of development, with innovation-driven and rigorous attitude, as well continuous improvement of supply chain, Qingdao Leff has become a comprehensive company integrating designing, manufacturing and marketing. LEFF International has been proved by ISO 9001, ISO 14001, and the products have been proved by CE, UL, WHO/PQS, LIGHTING GLOBAL and other international quality and safety standard. 

LEFF is the first company in China, that get the approval of WHO/PQS for freeze free vaccine carrier and cold box, and the only manufacturer who can supply freeze free vaccine cold box  globally til now. The solution has significantly decreased the spoil rate of the vaccine caused by freezing during the transportation. In the future, we will continue to work together with stakeholders for the improvement of global primary immunization!


The company has been committed to providing primary immunization solutions for low- and middle-income countries around the world. At present, its business has covered 45 countries around the world, including Africa, Latin America, Oceania, Asia Pacific and other regions. In order to better serve global users, the company has established local branches in Rwanda and Namibia to provide technical support and storage for Africa; At the same time, a storage hub is also established in Dubai for the surrounding areas. The Latin American service center is under planning.