FMI assessed automotive cell vent spacer market was valued at USD 174.5 million in 2025. Sales are poised to reach USD 190.0 million in 2026 and are expected to cross USD 445.8 million by 2036. Silicone foams are anticipated to lead by Material with 34.0% share in 2026 and Prismatic is expected to lead by Cell format through 2036.