The Indoor Aerosol and Exposure Lab is the research group of Brandon E. Boor, an Assistant Professor of Civil Engineering (Architectural Engineering Area) and Environmental & Ecological Engineering (by courtesy) at Purdue University. Our experimental research facilities are located at Herrick Laboratories as part of the interdisciplinary Center for High Performance Buildings (CHPB).

Please feel free to browse our website for copies of our journal papers and to learn more about our ongoing research with collaborators from Kenya, Finland, and across Purdue.

Research Areas & Interests: Indoor air quality (IAQ), HVAC filtration, human exposure assessment, airborne nanoparticles, bioaerosols (fungi, bacteria, pollen, allergens), air quality in occupational workplaces, particle adhesion & resuspension, early-life/infant exposures, combustion aerosols & wood smoke, new particle formation, urban air pollution, low-cost air quality monitoring, health effects of air pollution, and fate & transport of VOCs/SVOCs.

Our research tools, along with those of Herrick/CHPB faculty, include state-of-the-art aerosol instrumentation for studying characteristics of particles from 1 nanometer to 50 micrometers in size, reconfigurable living lab office spaces and air handling units, a full-scale HVAC filter test rig, and a variety of environmental chambers.  Our work also takes us outside of the lab, for field campaigns, mobile aerosol studies, and personal exposure monitoring.

Educational Activities:

EPICS - Global Air Quality Trekkers (GAQT) Undergraduate Team

Purdue AirSense: Air Pollution Sensing & Data Analytics for the Purdue Community

Lab News

February 2018: New paper published in Microbiome: Crawling-Induced Floor Dust Resuspension Affects the Microbiota of the Infant Breathing Zone

January 2018: Video feature on our infant crawling-induced particle resuspension study:

Selected media coverage of our ES&T paper from around the world:

Purdue University News: Babies stir up clouds of bio-gunk when they crawl

HuffPost: This Odd-Looking Robot Is Behind Some Groundbreaking Research About Infants

Forbes: Robot Baby Shows How Crawling On Carpet Creates Cloud Of Filth

Discover Magazine: Crawling Robot Baby Bravely Explores Carpet Gunk

Newsweek: Scientists Made A Baby Covered In Aluminum Foil To Show How Filthy Crawling Is

Parents: Crawling May Reduce a Baby's Risk of Asthma

VICE Motherboard: This Is My Child

BoingBoing: This weird crawling robot baby is used to study dirt and bacteria inhalation

CNET: See a creepy robot baby crawl on dirty carpet for science

The Verge: Terrifying baby robot has crawled right out of my dirt nightmares and into my dirt heart

MathWorks MATLAB: Behind the Headlines

GIZMODO: A Creepy, Crawling Robot Baby Reminds Us That Carpets Are Disgusting

Le Monde (France): Ce bébé robot permet d’étudier la quantité de bactéries que respirent les enfants

HuffPost (France): Ce bébé robot rampant est très inquiétant mais aussi très utile

Daily Mail (UK): Crawling babies 'kick up' a dust storm of dirt, skin cells and fungal spores which they breathe into their lungs

New Zealand Herald: Bubs crawl in clouds of 'biogunk'

svt (Sweden): Bebisars krypande drar upp mängder av damm och partiklar

Helsingin Sanomat (Finland): Lattialla ryömivät vauvat altistuvat mikrobeille aikuisia enemmän, selvisi robottivauvan möyrittyä helsinkiläisten likaisilla matoilla – ja se voi olla hyvä asia

Tekniikan Maailma (Finland): Tutkimus paljasti: Vauvat nostattavat ilmoille mikrobipilven ryömiessään matoilla

Spektrum der Wissenschaft (Germany): So viel Schmutz wirbelt ein Baby auf

la Repubblica (Italy): Confermati i timori delle mamme: i bimbi gattonano in una nuvola di polvere

BBC (Turkey): Bebekler yetişkinlere göre '4 kat fazla kir ve toz soluyor'

Journal & Courier: Purdue researcher's study shows babies kick up a lot of dust

January 2018: New paper by Ph.D. student Tianren Wu published in Environmental Science & Technology: Infant and Adult Inhalation Exposure to Resuspended Biological Particulate Matter. Paper was selected as the cover article for the Jan. 02, 2018 issue!

December 2017: Interviewed by Environmental Working Group (EWG) on infant exposures to indoor air pollutants while sleeping and crawling: Part 1, Part 2.

September 2017: Interviewed on IAQ Radio - IAQ and sleep:

September 2017: NIOSH Science Blog post with Purdue CIPP team: Cured-in-Place-Pipe (CIPP): Inhalation and Dermal Exposure Risks Associated with Sanitary Sewer, Storm Sewer, and Drinking Water Pipe Repairs

May 2017: Undergraduate student awards: Manjie Fu wins Best Poster Abstract Award in the Physical Sciences at the Purdue Undergraduate Research and Poster Symposium for his poster "Crawling‐Induced Resuspension as a Major Source of Particulate Matter in the Infant Breathing Zone" and Rachel Wetterlin wins a Center for the Environment (C4E) Undergraduate Student Summer Research Internship Award for her project "Evaluation of the Indoor and Outdoor Air Quality Implications of Community-Developed Modified Kitchens in Nandi, Kenya."

April 2017: Nandi Clean Kitchen Study & EPICS GAQT undergraduate team featured in Purdue Civil Engineering IMPACT magazine [Spring 2017, pg. 4-5].

March 2017: Help support undergraduate EPICS students travel to Kenya to work with the Nandi community on mitigating indoor air pollution in kitchens. 

January 2017: Research visit and study abroad in Nandi, Kenya with Purdue EPICS GAQT-GEP/I2D Lab team! The aim of our project is to evaluate indoor air pollution and ventilation of modified and traditional Nandi kitchens. The modified kitchens, which were designed and built by groups of Nandi women working with nurse Irene Kalamai of AMPATH Kenya, include chimneys, addiitonal roof-top ventilation pathways, and space to raise chickens below the stove.  Following our assessment, we will work with AMPATH to scale-up kitchen ventilation modifications across Nandi.

During our January field campaign, we collected extensive data on particle number & surface area concentrations (10-2,500 nm), CO, CO2, stove/chimney surface temperature (indicator of stove usage), differential pressure across facades, and air velocity at each opening (window, door, roof-vent).  Follow the progress of our project on Twitter @AirQualityEPICS.

Purdue Exponent article about our trip: Purdue students assess indoor air pollution in Kenya

December 2016: We received an Instructional Innovation Program grant for Purdue AirSense: A Student-Centered Teaching Platform for Air Pollution Sensing and Data Analytics (with Prof. Greg Michalski of EAPS).  We will create a state-of-the-art air quality monitoring station on the roof-top of Hampton Hall, measuring particle size distributions down to 10 nm, PM2.5, O3, CO, and NOx, along with a distributed network of low-cost air quality sensors across Purdue's campus.  All data will be streamed in real-time to a web-based platform. SURF positions are avaiable for undergraduate students in summer 2017.

December 2016: Our research was recently covered in the University of Helsinki Division of Atmospheric Sciences December newsletter, check it out here: ATM Newsletter Nr. 36

October 2016: EPICS GAQT team gives first design review presentation on their IAQ project with the Nandi community in Kenya!

September 2016: Nandi Clean Kitchen Study is featured in the AMPATH Gazeti newsletter!

August 2016: Join our new EPICS team - Global Air Quality Trekkers - and study abroad in Kenya over winter break!

August 2016: Welcome Tianren Wu (new Ph.D. student), Wenxin (Wendy) Wang (new Ph.D. student), Danielle Wagner (new M.S. student), and Jin Pan (visiting undergraduate student) to our group!

July 2016: CNN Health video on our sleep IAQ research - filmed at Herrick Labs!

Article by CNN's Senior Medical Correspondent, Elizabeth Cohen: How to make a Healthy Bed. More coverage by Purdue CE/ME:

July 2016: National Academies open-access report - Health Risks of Indoor Exposure to Particulate Matter: Workshop Summary - published. Chapter 2 covers our resuspension research!

June 2016: Visit to Eldoret, Kenya to begin the Nandi Clean Kitchen Study, in collaboration with Moi University and AMPATH Kenya.  Our project is supported by the Global Engineering Program Innovation for International Development Lab (I2D Lab).


April 2016: Purdue Exponent article on our IAQ research: "Indoor air quality research helps build safer buildings"

February 2016: Talk on particle resuspension at the Workshop on the Health Risks of Indoor Exposure to Particulate Matter at the National Academies of Sciences, Engineering, and Medicine. A PDF copy of my presentation can be found here and you can watch a video of my talk below:

New course in Spring 2016! Indoor Air Quality (CE 597/EEE 595)

Contact Information

e-mail: bboor [at] purdue [dot] edu

phone: +1-765-496-0576

twitter: @brandonboor

main campus: Hampton Hall Rm G241, 550 Stadium Mall Drive, West Lafayette, IN 47907

lab: Herrick Labs Rm 1015, 177 S. Russell Street, West Lafayette, IN 47907