Mars Air Systems STD242-1UA-OB
Mars Air Systems STD242-1UA-OB
Mars Air Systems STD242-1UA-OB image 0Mars Air Systems STD242-1UA-OB image 1

Mars Air Systems STD242-1UA-OB, 42" Air Curtain, 115 Volt UnHeated, Black, STD2 Series

$918.00 /ea

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Mars Air Systems STD242-1UA-OB Overview

Used for Door Heights of 10-12'

The STD2 Series is a commercial and industrial hybrid that is Mars Air System's most popular energy-saving series. It features a 1/2 horsepower power motor(s) that is louder and stronger than the LoPro but is ideal for a multitude of customer-facing and industrial applications. Suitable for heights up to 10-12 ft (ETL Sanitation rated for 7 ft heights.) The standard color on all models is Obsidian Black and heated options are available. Please call to ask for pricing on the heated models.


  • Commercial & industrial air curtain designed for a variety of applications including receiving and loading docks, customer entrances, patio doors, walk-in coolers, and more!
  • Maintains consistent interior temperature
  • Minimizes dirt, dust, and fumes
  • Allows for unobstructed views, enhancing safety compared to traditional strip curtains
  • Controls flying insects: 10' max height
  • Effective environmental control: 12' max height
  • Reduced energy consumption
  • New low profile design
  • Durable metal construction w/ powder coated finish
  • Easy to install
  • Low maintenance and operational costs
  • Contributes to LEED points


  • 1/2 HP Continuous Duty TEAO Motor(s)
  • Sleek self-contained one-piece heavy gauge corrosion proof paint lock metal design
  • ETL Certified to conform to UL 507 (US) and CSA 22.2 (Canada) Standards (Indoor/Outdoor Use)
  • AMCA Certified to AMCA 211 (see table above for models available)
  • Four( 4) 7/16” top and wall mounting holes provided, (2) on each end
  • Cabinet has sufficient strength for fastening to wall on both ends without intermediate support
  • Adjustable air directional vanes with 40° sweep front to back
  • Standard color is Obsidian Black
  • Rust preventative electrostatic polyurethane powder coating
  • Proudly Made in the USA

Notes: All Mars Air switches are non-returnable. All STD2 (1) motor units up to 48” are shipped with the Motor Fan Assembly (MFA) factory installed insidethe air curtain housing. For all other models, the MFA are shipped loose to minimize freight damage.

Product Dimensions:

  • Width: 42 Inches
  • Depth: 12.75 Inches
  • Height: 10.62 Inches

Mars Air Systems Warranty:

5 year parts

Since this item is not stocked in our warehouse, we can not guarantee availability, transit times, etc. If you need this item within a certain timeframe, please contact us before placing your order so that we can verify current stocking levels for you.

Product Brand


Made in USAETL Intertek Listed

STD242-1UA-OB Resources

Mars Air Systems STD242-1UA-OB Specifications


42 Inches
12.75 Inches
10.62 Inches


Air Volume (CFM)
Dock Doors
Employee Service Doors
Main Entrances
Shipping & Receiving Areas
Walk-In Coolers
ETL Listed
Exterior Color
Obsidian Black
Max Environmental Separation Height
12 Feet
Max Insect Blocking Height
10 Feet
Single Phase
STD2 Series
Unheated Air Curtains
115 Volts
510 Watts
65 Pounds
Product Condition


Manufacturer Warranty
5 year parts

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