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DR90

Quarter Round 90° Displacement Diffuser

Product Information -

Price DR90 Series displacement diffusers are designed to produce a low turbulence horizontal air supply in a 90° pattern. Typically installed at the joining of two walls or in a 90° recess, the DR90 discharges air evenly across its perforated face. The cool air then drops to the floor and gently floats into the occupied zone in a layer 2-5" thick. This appealing diffuser meshes seamlessly into any décor, providing a curved detail to the space. The superior air quality and low noise levels realized with the DR90 make it suitable for office spaces, hotels, convention centers, schools, or any application where air quality demands are high.

  • Top inlet available for use with duct covers.
  • Bottom inlet option for bottom duct connection.
  • Field-cut inlet option available.
  • Ships with protective film on face and inlet.

Construction/Finish +

Accessories +

  • Displacement Ventilation

    Brochures

    The Displacement Ventilation Brochure covers the wide range of Price products available for displacement ventilation, as well as the resources and support Price offers related to displacement ventilation. This brochure is designed for engineers and architects.

  • Displacement Ventilation Architectural Portfolio

    Brochures

    The Displacement Ventilation Architectural Portfolio is intended to showcase the custom design and architectural integration capabilities of Price displacement products.

  • Displacement Ventilation in Schools

    Brochures

    The Displacement Ventilation in Schools Brochure is designed to illustrate to engineers and architects how and why to apply Price displacement ventilation products in educational facilities.

  • Displacement Ventilation Catalog

    Complete Sections

  • Displacement Ventilation Engineering Guide

    Engineering Guides

    Displacement ventilation is an air distribution technology that introduces cool air into a zone at low velocity, usually also at a low level.

  • Finishes

    Product Options

  • Displacement Ventilation

    Representative Project Lists

    A representative list of projects across various geographical territories, organized by application type.

  • Stratified Systems Case Study Library

    System Libraries

    This case study library highlights several projects using Price’s Displacement Ventilation or Underfloor Air Distribution products including: • San Francisco Airport Terminal 2 • JE Dunn Construction Headquarters • Legacy Junior High School • Manitoba Hydro Place • Kauffman Center for the Performing Arts • RBC Centre • Banner Health Center Maricopa • “Foundation Headquarters” • California ISO Headquarters

  • Models for Determination of Length of the Adjacent Zone for DV Diffusers

    White Papers

    Displacement ventilation (DV) systems have been widely used in Europe in the last decades. Compared to traditional mixing ventilation, DV systems provide a better indoor air quality and lower the cooling energy consumption by taking advantage of temperature stratification. However, a complaint generally associated with this kind of ventilation system is the draft discomfort it can induce.

  • Designing Overhead Air Distribution for Increased Occupant Thermal Comfort

    Engineer Focused Webinars

    March 2016 – Recent ASHRAE research has shown the impact of lower minimum air volumes by diffuser outlet type. The impact of these lower air volumes on the occupant and the energy consumption will be explored.

  • Designing Stratified Air Distribution (Displacement and UFAD)

    Engineer Focused Webinars

    Using the buoyancy effect and letting the air stratify in the occupied space can lead to improved occupant thermal comfort and energy savings. The general concept and several building case studies will be explored.

  • Introduction to Displacement Ventilation

    Engineer Focused Webinars

    Hour long webinar discussing displacement ventilation products, theory, and design considerations.

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