Formaldehyde detecting apparatus, and air treatment apparatus having the same

An air treatment apparatus comprising:

• a formaldehyde detecting apparatus provided with a formaldehyde sensor capable of measuring concentration of formaldehyde in air;
• and
• an air suction apparatus,
• wherein the formaldehyde detecting apparatus comprises,
• a printed circuit board including:
• a formaldehyde sensor configured to measure a concentration of formaldehyde in air and including at least one output terminal;
• a signal processor configured to be electrically connected to the at least one output terminal of the formaldehyde sensor through the printed circuit board to process a signal output from the at least one output terminal of the formaldehyde sensor;
• a fixing member fixed to a substrate of the printed circuit board, separate from the at least one output terminal, and configured to receive the formaldehyde sensor to maintain the formaldehyde sensor in a fixed position relative to the signal processor to prevent the formaldehyde sensor from vibrating with respect to the signal processor by external vibration;
• and
• a power supply configured to supply a voltage to the signal processor,
• wherein the fixing member comprises
• a base portion configured to be fixed to the substrate of the printed circuit board and to receive the formaldehyde sensor to fix the formaldehyde sensor to the substrate of the printed circuit board;
• and
• a fastening portion extending away from the base portion and configured to fix the base portion to the substrate of the printed circuit board.