This creation is an air-intake purification system for the air-conditioning device of a bus. It includes a casing, a purification device and a plurality of pressurized fans. The casing system is arranged above the horizontal seat frame behind the vehicle interior and shields the air-conditioning device below the seat frame The upper part of the housing is the air inlet, and the purification device is located inside the housing and below the air inlet, and the pressurizing fan is located under the purification device, and the pressurizing fan will purify the air Guided to the air inlet； accordingly, the air in the vehicle compartment enters the shell from the upper air inlet, and is purified and sterilized by the purification device, and then introduced into the air inlet of the air conditioner to ensure that the air from the air conditioner is indeed sterilized The effectiveness of the vehicle, and enhance the anti-epidemic function and air quality in the car interior.本創作係一種大客車的空調裝置的進氣淨化系統，其包含有殼體、淨化裝置及複數加壓風扇，殼體係設置在車室內後方橫向的座架上方，且遮蔽座架下方之空調裝置的進風口，而殼體的上方為進氣口，而淨化裝置設於殼體內部，且位於進氣口的下方，而加壓風扇位於淨化裝置的下方，且加壓風扇將淨化後的空氣導向於進風口；據此，使車室內之空氣改由上方的進氣口進入殼體，先經由淨化裝置加以淨化殺菌後再導入空調裝置的進風口，以確保空調裝置導出的空氣確實達到滅菌的功效，而增進車室內的防疫功能及空氣品質。
