A must if you care about indoor air quality
I want to say right up front, as an HVAC contractor, I think that every home needs one of these. Especially if you have natural gas or propane appliances in your home. This includes a furnace, water heater, fireplace, wall-mounted or freestanding gas heater stove, cooktop or oven. Kerosene heaters too. It could save your life.
MrLowNotes
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