About product and suppliers:
            18,579 room air filter products are offered for sale by suppliers on Alibaba.com, of which air purifiers accounts for 39%, air filter accounts for 20%, and air purifier parts accounts for 1%. 

A wide variety of room air filter options are available to you, 

There are 19,009 suppliers who sells room air filter on Alibaba.com, mainly located in Asia. The top countries of suppliers are United States, China, and Taiwan, China, from which the percentage of room air filter supply is 1%, 99%, and 1% respectively. 

Room air filter products are most popular in United States, Australia, and United Kingdom.