Hello,I am interested in your fan, but I have some questions first.Can you ship to Europe?What would the most economical (lowest/cheapest) cost of shipping to Poland be?What would be the cost of shipping for up to 15 days transportation time?What is the weight of the fan?Does the fan have a 230V wall plug?Is this fan both AC and DC?What is the maximum CFM of this fan? And minimum CFM?Does the fan have a wall mount or other way of attaching to a wall or ceiling?How do I go about obtaining a sample for testing to find out whether your fan meets our requirements?For my reference: Show More