Would highly recommend Safety King, Tony was so helpful in answering all my questions. I have an April air humidifier on my furniture, never knew how to use it. Tony show me how to adjust it for winter and summer, and he clean out my dryer vent hasn’t been clean in 18 years ..really needed cleaning. Thank you Tony for been so knowledgeable and helping me understand how this furnace works. Woke up to clean and dust free house.