Car Air Purifier / Ionizer (12V)
Compact in-car air purifier with HEPA + activated carbon filter and ionizer. 12V DC via USB-C or 12V socket. Covers up to 15m³ cabin volume. CE/FCC certified.
What to Check When Sourcing
Car air purifiers are a high-competition, marketing-heavy category. The cabin volume of a typical car (2–3m³) means even a modest CADR of 15 m³/h delivers effective air changes, but ozone generation from ionizers is a genuine safety concern.
Ozone generation limit. Some ionizers produce ozone as a byproduct. The California Air Resources Board (CARB) limits indoor ozone from air cleaning devices to <0.050 ppm. The WHO indoor air quality guideline is even lower. Specify “no detectable ozone” or “<0.01 ppm ozone generation” and require an accredited lab measurement.
Filter type for VOC vs. PM2.5. H11 HEPA filters particulates; activated carbon adsorbs VOCs (benzene, formaldehyde from new car interior off-gassing). For the Asian market where new-car VOC concerns are high, specify at least 50g of activated carbon in the filter stack.
USB-C power specification. 5V USB-C power at 5W is adequate for a small car purifier but limits fan speed. USB-C PD (15W) allows higher CADR. Verify the power input specification matches the typical power port available in target market vehicles.
Common Issues
Filter replacement availability — If your buyers can’t find replacement filters 12 months after purchase, you’ll have return requests. Set up a filter supply agreement with the factory or source generic replaceable filter sizes.
Dashboard mount stability — Adhesive mounts fail in direct sunlight (temperatures above 60°C soften adhesive). Test the mount adhesive at 70°C for 24 hours while applying a 500g lateral load.
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