Cabin Air Filter Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Puroma is the best-performing cabin air filter brand in July 2026, moving 24,000 units across 3 ASINs for 38.7% of Top 10 volume. EPAuto follows with 15,000 units (24.2%), ahead of Bosch on 12,000 units (19.4%).

With 4 brands splitting the Top 10 and 82.3% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $11.64 to $14.99, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0BGHWBNLS booked 5K units at $15.85, with ▲ 25.0% MoM change. On the growth side, B0FPQC1VM6 leads positive momentum with ▲ 100.0% MoM growth on 2K units, with B0FPQ91GXT close behind at ▲ 50.0% MoM on 3K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.