In the cooling and heating machines, there is significant dust particle accumulation when they have not been cleaned for a prolonged period. Some of these particles can cause serious health hazards if they enter your body. If you have toddlers in your house, they can get instant effects. You need to hire a professional service for proper air duct cleaning Ottawa services. While there are many cleaning service companies available, finding the best can be a daunting task. Therefore, let us look at the following tips for finding the best cleaning service.