Downloading ClamXV 2.2 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The following version: 2.2 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus. ClamXV for Mac belongs to Security Tools. This free Mac application was originally designed by Mark Allan.
From the developer:
ClamXav is a free virus scanner for Mac OS X.Antivirus or anti-virus software is used to prevent, detect, and remove malware, including but not limited to computer viruses, computer worm, trojan horses, spyware and adware. A variety of strategies are typically employed. Signature-based detection involves searching for known patterns of data within executable code.
You may want to check out more Mac applications, such as Dr.Web AV-Desk Console, Eclipse-RPC or RapportGUI, which might be similar to ClamXV.