First, thanks for the seminar on air purification – we gained a wealth of information. The integral units we purchased for our office have been beneficial in reducing health issues, and as a result, increasing productivity. We need to order another unit for our addition, now under construction. We are now specifying both of the integral units in our residential projects such as the apartment at 10 Gracie Square. We will be incorporating the in-duct units on our newer projects. We are seeing more of our clients looking to this option and are grateful to you for supporting their needs and allowing us to benefit from your knowledge."