As of 2015, DAX air cleaner detergent can be purchased online from AmericanHVACParts.com, ACWholesalers.com and eComfort Holdings. The detergent is available in jugs or spray bottles.
AmericanHVACParts.com offers the 32-ounce spray bottle of DAX air cleaner detergent. Shipping options from the company include next-day, two-day or three-day shipping via United Parcel Service. ACWholesalers.com sells 1.1-gallon jugs and 32-ounce spray bottles of DAX detergent. It offers a low price guarantee and shipping within one to two business days.
DAX detergent in 1.1-gallon jugs and 32-ounce spray bottles is also available from eComfort Holdings. The company offers the option of making payments through its website, or by checking out through an Amazon.com account.