100% Polyester Helmet Fan Attachment With Battery Box (Half Brim/No Brim)
ZIPPKOOL Attachable Helmet Fan for Half Brim Hard hat (OSHA COMPLIANT)
The fan attachment sends air into the helmet to release heat and humidity build up in the helmet, at the same time providing cool sensational feeling in the head, as well as the the face and neck area. Attachable to any standard baseball cap style/half brim hardhat, powered by AA Battery Box