Are Car Air Purifiers Really Effective?
2 Answers
Car air purifiers are indeed effective. Here is some extended information: 1. Car purifiers can clean the air inside the vehicle, filtering out bacteria, dust, and other particles. 2. Excessive formaldehyde in car air mostly comes from decorative materials such as seat cushions, sofa pads, and ceiling fabric linings, while benzene comes from adhesives. 3. The smell in new cars is extremely harmful. Due to the confined space, harmful gases are not easily dispersed. The human body also emits harmful gases like carbon dioxide. Prolonged driving in such polluted conditions can easily cause discomfort and even lead to traffic accidents. 4. There are two common purification methods for car air purifiers: active filtration with filters and passive electrostatic adsorption.
I bought an in-car air purifier last year, and it works really well. There used to be a lingering smell of smoke and pets in the car, but now it’s barely noticeable. Especially during traffic jams with the windows closed, you can clearly see the PM2.5 levels drop from over 100 to below 20. But here are a few reminders: don’t cheap out and buy no-name brands—my colleague’s purifier barely made a difference. The activated carbon filter needs to be replaced every three months, or it could cause worse secondary pollution. For new cars, relying solely on it to remove formaldehyde isn’t enough—you need to roll down the windows for ventilation. And don’t expect much from it on the highway with the windows down—its effectiveness drops significantly.
