Air Curtain Sizing Calculator
Estimate early air curtain selection inputs from door size, mounting height, opening condition, and heating preference.
- Door width
- Door height
- Mounting height
- Opening type
Commercial Ventilation Equipment
MiWind air curtains, ventilation fans, fresh air systems, exhaust fans, and dehumidifiers.
MiWind air curtain and ventilation equipment starts with product family, application, sizing tool, catalog, and current model document needs.
Air curtain Start Here
Choose how to start
MiWind routes product, channel, OEM, and document requests by buyer role so the first note includes the right product and project details.
Project Buyer Start project request Start with equipment family, application, quantity, size or CFM target, state, and timeline. Distributor / Dealer Start dealer inquiry Share territory, product focus, channel background, stocking scope, and recurring demand. OEM / Private Label Start OEM inquiry Prepare product family, market, quantity range, branding scope, packaging, voltage, and document needs. Contractor / Installer Product documents Find sizing worksheets, model document requests, installation details, and product documents for field work.
Product Finder
Find the right MiWind product family
Choose the intent, application, and known inputs. The result stays at family level and adds the selected product details to the RFQ.
Equipment Portfolio
Air Curtains, Ventilation Fans, Fresh Air Systems, and Dehumidifiers
A focused view of MiWind product families for commercial entrances, rooms, duct paths, exhaust points, fresh air, and moisture control.
Equipment Families
Commercial Air Curtains and Ventilation Products
Compare the main MiWind equipment families by application, field input, and next selection step.
Family Key project input Next step
Air Curtain Entrance air control Door width / mounting height Compare air curtain series Ventilation Fan Ducted airflow CFM / static pressure Review fan type and duct path Fresh Air System Fresh air and recovery Supply CFM / recovery type Define airflow and service access 
Exhaust Fan Room exhaust CFM / noise / duct route Review exhaust fan series 
Dehumidifier Moisture control Pints/day / moisture load Size the moisture load Sizing Tools
Airflow Calculators
Air curtain sizing, ventilation CFM, bathroom exhaust, dehumidifier, ACH, ERV/HRV, and duct pressure tools.
Room Ventilation CFM Calculator
A room ventilation CFM calculator, room ventilation calculator, commercial ventilation CFM calculator, fan size calculator, office space ventilation fans intake, sq ft to cfm estimate, sq ft to CFM estimate, vent size calculator, cfm exhaust fan calculator, cfm of a fan estimate, and CFM for room size worksheet for planning-level airflow from area, ceiling height, target ACH, room use, source condition, and duct path.
- Area
- Ceiling height
- Target ACH
- Room type
Bathroom Exhaust Fan Sizing Calculator
Bathroom fan calculator for CFM, bathroom fan CFM calculator inputs, bathroom exhaust fan CFM calculator review, bath fan CFM calculator review, and bathroom exhaust fan size calculator notes from room area, ceiling height, moisture use, duct size, duct length, elbows, termination, and sone target before ceiling-mounted exhaust fan or inline duct fan review.
- Bathroom area
- Ceiling height
- Moisture level
- Duct length
Fan Applications
Commercial Spaces
Retail entrances, kitchens, bathrooms, warehouses, gyms, offices, cafes, cold rooms, and storage spaces.
Space type Retail Entrances
Retail entrance air curtain planning for storefront doors and retail store entrance air curtain selection for storefront doors where comfort, insects, dust, traffic, and heating preference shape the air curtain review.
Retail Entrances guide
Space type Restaurant Ventilation Systems
Plan ventilation system restaurant briefs, ventilation for restaurants, ventilation systems for restaurants, air ventilation systems for restaurants, restaurant ventilation fan locations, dining room ventilation, restroom exhaust, service corridor airflow, ducting system for restaurant support rooms, kitchen ventilation + ERV handoff, sound target, controls, and current model documents.
Restaurant Ventilation Systems guide
Space type Kitchen Ventilation and ERV Planning
Support kitchen ventilation and ERV planning, including kitchen ventilation + erv questions, around adjacent airflow reviews while keeping hood and code requirements separate.
Kitchen Ventilation and ERV Planning guide
Space type Cold Room Doors
Plan air curtain reviews for walk-in cooler, cold-room, and temperature-separated openings.
Cold Room Doors guideSelection Articles
Air Curtain and Ventilation Articles
Short technical articles for doorway sizing, cold-room separation, heated air curtains, exhaust fan sound, dehumidifier sizing, and ERV review.
Air Curtains
Commercial Air Curtain Sizing Guide for Retail Entrances
Plan commercial air curtain sizing for storefront doors from door width, mounting height, exposure, heating need, controls, and field inputs before requesting model review. Read Air Curtains Exhaust Fans
What Are Sones in Bathroom Fans? Sone vs dBA
Sones describe perceived loudness for bathroom and exhaust fans; compare sone rating, dBA, CFM, duct length, grille, mounting, and installed noise risk. Read Exhaust Fans
Dehumidifiers