Air Curtain Market Size & Share, By Airflow (Up to 500 m3/h, 500 to 1000 m3/h, 1000 to 1500 m3/h, Above 1500 m3/h), By Distribution Channel (Online, Retail Stores, Wholesale Stores, Others), By Deployment (Wall-mounted, Ceiling-mounted), By Application (Residential, Commercial, Industrial) - Growth Trends, Regional Insights (U.S., Japan, South Korea, UK, Germany), Competitive Positioning, Global Forecast Report 2025-2034