Air Cleaning Articles

  • Is the solution to pollution dilution?

    Controls and monitors are part of environments where cleaning and purifying air moves beyond the usual HVAC filters and ventilation air. We can now utilize sensors and real time monitors that identify, track, and assure safe destruction of: mold, odors, allergens, bacteria, viruses, corrosion, chemical gases, and VOCs. Powerful proprietary filter media, adapted to each environment’s unique ...


    By ProMark Associates, Inc.

  • Dynamic Air Quality Solutions - Celebrating Thirty Years!

    This year we are very pleased to celebrate the thirtieth anniversary of the first one-inch polarized-media electronic air cleaner. It was thirty years ago that the first polarized-media electronic air cleaner, produced under our “Dynamic Air Cleaner” brand, was introduced. As with many high-efficiency filtration products, polarized media has its roots in industrial applications. ...

  • Polarized-Media EACs are coming of Age

    Non-ionizing  polarized media is an IAQ technology finding broader market uses. It applies an active electric field to cap tore airborne particles, changing the way particles, behave in the air. In smaller residential equipment, this allows an electronic air cleaner (EAC) to operate efficiently within a space only 1 inch wide - the same sp-ace as a disposable filter. In larger commercial ...

  • Microbial reduction efficiencies of filtration, electrostatic polarization, and UV components of a Germicidal Air Cleaning System

    Abstract: This study determined the effectiveness of components of a germicidal air-cleaning system involving filtration, electrostatic polarization, and UV light on the reduction of airborne bacteria and molds. The filter alone, filter and electrostatic polarization combined, and the filter, electrostatic polarization, and UV light were found to be effective (P < 0.05) in reducing a given ...

  • PFC Pollution in the office environment

    A new study suggests that exposure to chemical pollution could be a particular problem in the office environment. Researchers in the United States have found a link between Polyfluorinated Compounds (PFCs) in the air of a number of offices and their presence in the blood of the people working there. Polyfluorinated Compounds are water and stain-resistant and they have been used for many ...


    By Commercial Air Filtration

  • Influence of permeation on air/water cleaning of spiral wound membrane NF/RO elements

    To improve hydraulic conditions, periodic air/water cleaning (AWC) is applied to a nanofiltration (NF) spiral wound membrane (SWM) element under permeation conditions to control biofouling and particulate fouling. A pilot study was carried out for 212 days with a vertically positioned SWM element fed by tap water enriched with a biodegradable compound (60 μg acetate-C l−1). Operational parameters ...


    By IWA Publishing

  • Air/water cleaning for the control of particulate fouling

    Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...


    By IWA Publishing

  • Efficient cyclone systems for fine particle collection

    Numerically optimised cyclones and recirculation systems have been shown to be highly efficient for the capture of fine particles, such as those occurring in the production of active pharmaceutical and food ingredients. Romualdo Salcedo and Júlio Paiva describe some of the recent developments in this area. The optimised design of gas cyclones is of particular relevance for the recovery of ...

  • Numerical Simulation of Spray Pattern in a Liquid Flashing Column

    Spray columns and towers are fundamental in many industrial applications. Understanding the spray pattern in these dynamic environments is very important in the design of an overall spray system solution. Traditional laboratory physical experiments can be time-consuming, expensive, and sometimes impossible to complete. Computational fluid dynamics (CFD) modeling can be used effectively in this ...


    By Spraying Systems Co.

  • Methodology to determine component shell noise targets of vehicle induction systems

    This paper describes a study that utilises transfer path analysis to quantify the shell noise contribution of a production air cleaner and compares the results to a prototype air cleaner with different surface characteristics. This technique utilises the surface velocity of the intake manifold and air cleaner and the transfer function of both components to predict the sound at the driver's ear. A ...


    By Inderscience Publishers

  • Stochastic modeling approaches based on neural network and linear–nonlinear regression techniques for the determination of single droplet collection efficiency of countercurrent spray towers

    This paper presents a new mathematical model and a two-layer neural network approach to predict the single droplet collection efficiency (SDCE), η  d, of countercurrent spray towers. SDCE values were calculated using MATLAB® algorithm for 205 different artificial scenarios given in a large range of operating conditions. Theoretical results were compared with outputs obtained from a ...


    By Springer

  • Desalination using spray tower and vapour compression refrigeration system

    A desalination system using a spray tower and Vapour Compression Refrigeration (VCR) system is proposed for obtaining fresh water from brackish water. In the spray tower, simultaneous heat and mass transfer take place between the brackish water and air, which results in the evaporation of the brackish water and humidification of the air. Fresh water is obtained from the humidified air by ...


    By Inderscience Publishers

  • Cancer Care Center of York County Sanford, Maine - Case Study

    Key Parameters Type of Facility – Existing Build (EB) Function – Healthcare Area – 1-story Oncology and Patient Care Building Project Completed – 2007 Challenge: Clean air is important but it is extremely important for oncology patients. When the facility opened in 2006, the center’s ...

  • Class-a Office Tower 947 Fort Street Victoria, B.C. - Case Study

    Key Parameters Type of Facility – New Construction Function – Upscale Professional Offices with Retail Area – Six stories, 44,000 sq. ft. Project Completed – 2010 LEED Gold Challenge: Sustainable design. Designing for LEED Gold certification, engineers and owners wanted to add value by ...

  • Dana-Farber Cancer Institute Boston, MA - Case Study

    Key Parameters Type of Facility – Existing Building Function – Laboratory & Offices Area – 100,000+ sf Project Completed – 2012 LEED Registered - LEED-CI v2009 Challenge: Sustainable design. Dana-Farber Cancer Institute (DFCI) is a principal teaching affiliate of the Harvard Medical ...

  • Albany times union newspaper Albany, New York - Case Study

    Key Parameters Type of Facility – Existing (EB) Function – Commercial Printing Area – 17,000 sf printing bay Project Completed – 2010 Challenge: Remove noxious ink smell from inside a large commercial newspaper printing facility. An antiquated rolling media filter system was ineffective at ...

  • Churchill Downs Louisville, Kentucky - Case Study

    Key Parameters Type of Facility - Existing (EB) Function - Sports, Hospitality Area - 404,000 sf, 6-stories Project Completed - 2007 Challenge: IAQ for patron comfort and effective filtration. A primary objective in the six-story expansion was the ability to handle larger crowds at a variety of events; from races to ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you