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About product and suppliers:
        Alibaba.com offers 248,767 diffuser products. About 30% of these are humidifiers. 

A wide variety of diffuser options are available to you, such as cb, ce, and saso. You can also choose from ultrasonic humidifier, cool-mist impeller humidifier, and warm mist humidifier. As well as from tabletop / portable, usb, and central. And whether diffuser is humidistat, or manual. 

There are 246,699 diffuser suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 96%, 2%, and 1% of diffuser respectively. 

Diffuser products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 55,448 with ISO9001, 27,037 with Other, and 6,420 with ISO14001 certification.