Where can you find fragrance free Oust spray?

According to SC Johnson, the manufacturer, the fragrance free version of Oust was discontinued in July 2009. Here's a quote from their website*

"Unfortunately, as of July 2009, Oust® Air Sanitizer Fragrance Free is no longer produced. You may be able to find it in some retailers but you can also call our Consumer Relationship Center at 1-800-558-5252 to see if this product is available through mail order."

*link: http://www.scjohnson.com/en/products/asked-and-answered/ask-question-comment.aspx?title=Where-Is-Fragrance-Free-Oust