What are the steps to remove formaldehyde from a car?

[LaAva]

Steps to remove formaldehyde from a car: 1. Thoroughly clean the car's interior; 2. Use an air compressor to evenly spray photocatalyst inside the car; 3. Wait for the solvent to dry, then perform a second spray to ensure all interior parts and corners are covered; 4. After the process, try to open the windows as much as possible for ventilation to ensure air circulation inside the car. To remove formaldehyde from a car, you can also place some bamboo charcoal bags or install a car air purifier. The bamboo charcoal in the bags has a porous structure with strong adsorption capacity, which can absorb harmful gases like formaldehyde, benzene, and sulfur dioxide inside the car, and release natural minerals. Bamboo charcoal bags also have excellent water absorption properties, helping to dehumidify, deodorize, and prevent mold in the car.

[JayceLee]

When I first got my new car, the most headache-inducing thing was that pungent smell inside. The most straightforward method I tried was opening all the windows and letting it air out under the sun—parking the car outdoors in summer with all four doors wide open for three hours could eliminate 50-60% of the formaldehyde. Remember to remove all the plastic protective films from the interior, otherwise the smell gets trapped and worsens. Doing this three times a week was more effective than any formaldehyde remover. Don’t forget to take out the spare tire from the trunk and let it air separately—the rubber smell is another major source of formaldehyde. If it rained, I’d switch to using an in-car air purifier with an activated carbon filter, and the odor reduction was visibly noticeable. After about a month of persistence, I no longer have to hold my breath while driving.

[Bryan]

Last time I helped my mother-in-law deal with the formaldehyde in her new car, I used the adsorption method. I bought over twenty activated charcoal bags, placing two under each seat and wedging a few into the gaps of the dashboard. The key is to choose coconut shell activated charcoal, as ordinary bamboo charcoal is completely ineffective. Every weekend, I take the charcoal bags out to sun them for regeneration and reuse. I also used a photocatalyst spray; after spraying, I opened the sunroof to let the sunlight in, as UV rays can catalyze the decomposition of formaldehyde. I also replaced the air conditioning filter with a HEPA composite carbon one. Now she feels much more at ease taking her grandchild out. Remember to test for formaldehyde after doing all these—a few dollars' worth of test cards are more reliable than mystical methods.

[ODawson]

I learned a painful lesson about formaldehyde removal: last year I bought cheap, low-quality seat covers that made my eyes sting. Later I realized the key is to block it at the source. On the day I picked up my car, I did a full interior high-temperature steam cleaning at 180°C to force formaldehyde out of the adhesives. Then I sprayed the entire car with bio-enzymes - these protein decomposers can break down formaldehyde molecules. The most crucial step was maintaining fresh air circulation by keeping the diagonal windows slightly open while driving to create cross-ventilation. Three months later, the detector showed 0.02mg/m³, finally meeting the standard.