3B Protector cleans and removes dirt soil inanimate nutrients and organic particles that contaminate birdfeeders birdseed and birdhouses. Our product is gentle and safe because it is made from all-natural ingredients which imitate natural cleaning processes that occur in nature. Aspergillus Havus (fungus aflatoxin) and Aspergillus Parasiticus are fungi that harm bird s immune systems. Birdhouses birdseed and feeders can become infected with fungi parasites and mold. 3-B Protector is exclusively designed to clean away these unwanted pests safely and effectively while not harming birds.