I just wanted to put pen to paper to confirm how good the portable air sterile unit is. As a high-end boutique hotel it is extremely important for us to maintain high hygiene standards throughout the property, and the unit really helps us to achieve this. I must admit I was a bit sceptical at first, but it's really proved its worth, it helps to remove odours from bedrooms where guests have smoked, or we have painted the room, or there has been an accident instead of keeping the room off, we can re-instate it much quicker and sell it, it pays for itself! I am really impressed with it, thanks for convincing me!