Generally, carbon monoxide is a very poisonous gas created during fuel burning that pollutes the air and harms human health. Long-term exposure to carbon monoxide can have very bad effects on your health, including knocking you out and even killing you. Identification of carbon monoxide and its concentrations in the atmosphere is difficult due to its colorless, odorless, and tasteless nature, with symptoms frequently misattributed to common diseases. The ability to accumulate discreetly requires prompt identification to prevent unintentional exposure and ensure safety. We developed a method that combines IoT technology with photocatalytic reactions using titanium dioxide (TiO2) to address these challenges. The IoT device detects carbon monoxide levels, and upon surpassing safety criteria, a reactor is activated to convert carbon monoxide into carbon dioxide, so cleansing the air. The proposed system effectively monitored carbon monoxide concentrations using an IoT device and safely reduced pollution by transforming CO into CO2 through a photocatalytic reaction in a TiO2-coated reactor, thus ensuring effective air purification and enhanced safety.