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BrookventBrookvent
Brookvent
Mechanical, Heat Recovery Ventilation and Window Ventilation, Northern Ireland, UK Mainland
  • Heat Recovery
    Ventilation
    • Heat Recovery Introduction
    • aircycle 1.2 Heat Recovery Ventilation System
    • Aircycle 1.3 Heat Recovery Ventilation System
    • Aircycle 1.3 Heat Recovery Ventilation Digital Range
    • Aircycle 3.1 Heat Recovery Ventilation Digital Range
    • Aircycle 4.1 Heat Recovery Ventilation Digital Range
    • Refurbished Aircycle Heat Recovery Ventilation System
    • aircycle ONE Single Room Heat Recovery System
    • aircycle ONE+ Single Room Heat Recovery System
    • NOX 50
    • NOX 100
    • FAQ’s/ Information
  • Mechanical
    Ventilation
    • Introduction
    • airstream ACE
    • airplus PIV
    • Airstream Decentralised Mechanical Extract Ventilation DMEV
    • airstream 1.1 E
    • airstream 1.1 EH
    • airstream Xe
    • airstream Xe+
    • BTP EC Duct Fan
    • AP Evo Air Purifier
    • FAQ’s/ Information
  • Ducting,
    Accessories
    & Filters
    • Introduction
    • airduct FIREBRICK
    • Semi Rigid Range
    • Filters
    • Accessories
    • Replacement Parts
  • Vents
    • Surface Mounted / Throught The Frame Vents
      • SM 1000
      • SM 1000+
      • SM 1200
      • SM 1200+
      • SM 1400
      • Acoustic Vents
      • SM TIP VENT
      • SM TIP VENT EVOLUTION
    • Glazed in Vents
      • DG 1500
      • DG Standard
      • Thermal Break
      • PD
      • DG 75
      • DG 80
      • DGL 80
      • DGL SUPER
    • Over Frame Vents
      • OF STANDARD
      • OF ACO
      • OF SUPER
    • Acoustic Vents
      • SM Ultima
      • OF Aco
      • OF Super
      • SM Acoustic
      • DGL Super
      • Aquvent
    • Specialist Vents
      • Gas Vent (Always open)
      • Hunidity control
      • Ultra high weather
    • Wall Vents
      • Introduction
      • Aquwall HY+/ Aquwall SI HY+
      • Aquwall Press
  • Heat Pump
    • Airtherm Aqua 1.1
    • Airtherm Aqua 1.2
    • Airtherm SPLIT Heat Pump
    • Airtherm MONO Heat Pump
  • News
    • News
    • Blogs
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  • Louvres
    • Standard ventilation louvres
      • Flanged Wall Louvres
        • BRL20V-FL
        • BRL34V-FL
        • BRL34Z-FL
        • BRL50Z-FL
        • BRL60Z-FL
        • BRL65Z-FL
        • BRL75Z-FL
      • Glazed-in Louvres
        • BRL20V-GL
        • BRL34V-GL
        • BRL34Z-GL
        • BRL50Z-GL
        • BRL60Z-GL
      • Surface Mounted Louvres
        • BRL20V-SM
        • BRL34Z-SM
    • Ventilation louvres with increased flow area (HF)
      • Flanged Wall Louvres
        • BRL34Z-FL HF
      • Glazed-in Louvres
        • BRL34Z-GL HF
      • Surface Mounted Louvres
        • BRL34Z-SM HF
    • Ventilation Louvres with increased water resistance (EWR)
      • Flanged Wall Louvres
        • BRL34Z-FL EWR
        • BRL50Z-FL EWR
        • BRL60Z-FL EWR
        • BRL65Z-FL EWR
        • BRL75Z-FL EWR
      • Glazed-in Louvres
        • BRL34Z-GL EWR
        • BRL50Z-GL EWR
        • BRL60Z-GL EWR
      • Surface Mounted Louvres
        • BRL34Z-SM EWR
  • Thermoscreens
    • Air Curtain Products
    • Surface Mounted Air Curtains
      • C Series
      • C Series Designer
      • Compact 2
      • HP Series
      • HX Series
      • Thermoscreens HX CS Cold Store
      • IP Series
      • Jet3 overdoor heater
      • PHV
      • PHV Designer
      • PHV Vertical
      • T Series
      • EcoPower remote control and monitoring (SM)
    • Recessed
      • C Series
      • Compact 2
      • HX Series
      • PHV
      • T Series
      • T600 and T800 Thermal Air Heaters
      • EcoPower remote control and monitoring
  • Biddle
    • Climate Control Solutions
    • Comfort Air Curtains
      • SR Air Curtain
      • Invisidor City Comfort Air Curtain
      • Invisidor Style Designer Air Curtain
      • Invisidor Doorflow Comfort Air Curtain
    • Industrial Air Curtains
      • Indac2 Air Curtain
      • IsolAir2 Chilled Room Air Curtain
      • MAT Cold Store Air Curtain
    • Industrial Heaters
      • Noz2 Ceiling Mounted Industrial Cooling
      • Noz2 Ceiling Mounted Industrial Heater
      • Uniflow Air Heater
    • Heating & Ventilation
      • Innovair Fresh Air Fan Convector
      • Comfort Circle
      • Forceflow H2
      • Forceflow LST Fan Convector
      • Forceflow CB Fan Convector
    • Heat Recovery
      • Air2Air Heat Recovery Solutions
    • Fan Coils
      • Comfort Circle Cassette Units
      • Deco Fan Coil Units
      • Isotherm Fan Coil Units
      • Modulair Fan Coil Units
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Comfort Air Curtains

A Comfort Air Curtain from Biddle will provide an energy-efficient solution for your commercial requirements. An air curtain does not act as a physical barrier, but conditions incoming air and reduces the amount of warm air escaping from the building. An air curtain should therefore enhance comfort and save energy.

Patented technologies

With any air curtain it is essential that the ‘jet’ of air reaches the floor and covers the entire door width. Research and development programmes have established that without careful measurement of temperatures within the door opening, and without automatic control of discharge velocity and temperature, laminar and energy efficient flow cannot be achieved. Use of Biddle’s patented rectifier technology ensures a laminar air stream and a climate separation efficiency of over 90%. 

SR Air Curtain

  • Intelligent control and remote monitoring
  • Modbus integrated as standard
  • Ability to capture and collect temperature data
  • Stylish and low noise
  • Complete customised solution
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INVISIDOR STYLE DESIGNER Air Curtain

  • Eye catching designer looks
  • Comfort and energy savings
  • Low cost installation
  • Simple energy-saving HVAC controls
  • Vertical or horizontal configurations
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INVISIDOR DOORFLOW Comfort Air Curtain

  • Minimalist design
  • Filter free
  • Long lasting performance
  • Maintenance-friendly
  • Energy saving Econtrol
  • Performance enhancing patented discharge rectifier
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INVISIDOR CITY Comfort Air Curtain

  • Aesthetically designed unit
  • Comfort and energy savings
  • Low-cost installation
  • Simple control
  • Used by many high street stores
  • Incorporates patented Invisidor technology
  • Suitable for most high street applications
VIEW PRODUCT
Biddle
  • Climate Control Solutions
  • Comfort Air Curtains
    • SR Air Curtain
    • Invisidor City Comfort Air Curtain
    • Invisidor Style Designer Air Curtain
    • Invisidor Doorflow Comfort Air Curtain
  • Industrial Air Curtains
    • Indac2 Air Curtain
    • IsolAir2 Chilled Room Air Curtain
    • MAT Cold Store Air Curtain
  • Industrial Heaters
    • Noz2 Ceiling Mounted Industrial Cooling
    • Noz2 Ceiling Mounted Industrial Heater
    • Uniflow Air Heater
  • Heating & Ventilation
    • Innovair Fresh Air Fan Convector
    • Comfort Circle
    • Forceflow H2
    • Forceflow LST Fan Convector
    • Forceflow CB Fan Convector
    • DECOQT Fan Coils
  • Heat Recovery
    • Air2Air Heat Recovery Solutions
  • Fan Coils
    • Comfort Circle Cassette Units
    • Deco Fan Coil Units
    • Isotherm Fan Coil Units
    • Modulair Fan Coil Units
Latest news
  • black friday
    Black Friday 2025 Deals – Biggest Sale of the Year!
    November 6, 2025
  • Merry Christmas and Happy New Year from Brookvent
    December 20, 2024
  • Black Friday of 2024 is now on. Get some of our best deals ever!
    November 7, 2024
  • Brookvent celebrates 40 years in business
    Brookvent Celebrates 40 Years of Innovation and Excellence
    July 11, 2024
Latest blogs
  • brookvent louvre
    Enhance Airflow, Efficiency, and Aesthetics with Louvres
    October 31, 2025
  • How to Choose the Perfect Ventilation System for Your Home
    December 5, 2024
  • Combatting Hay Fever: Solutions for a Pollen-Free Home
    Combatting Hay Fever with Air Filters: Solutions for a Pollen-Free Home
    July 22, 2024
  • New vs. Older Homes: What You Need to Know About Ventilation
    New vs. Older Homes: What You Need to Know About Ventilation
    July 19, 2024
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    Brook House, Dunmurry Industrial Estate, Dunmurry, Belfast, Co. Antrim, BT17 9HU
    Tel: +44 (0)28 9061 6505 / Fax: +44 (0)28 9061 6518 / Email: hello@brookvent.co.uk
    Registered in Northern Ireland with Company No: NI 019735

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