Is Tea Tree Oil Safe to use ? September 29, 2014 No Comments Yes, Tea Tree Oil is safe, it contains natural germicides. Previous Post Next Post You may also like September 29, 2014 Are there any health benefits that come from HVAC system cleaning? September 29, 2014 What about companies that offer whole house duct cleaning for around $99? March 12, 2015 Can you do carbon monoxide testing?