ODORTEST
Measure the air — olfactometry, odour-unit maths, emission rates, and the dilution calculators every odor assessment needs.
From turning a dilution-to-threshold ratio into an odour concentration and sizing olfactometer dilution steps to computing emission rates, reducing a panel to a group threshold, planning ventilation, and screening separation distances, OdorTest pairs free hands-on olfactometry calculators with practical guides and an illustrated museum. Measure it before you manage it.
Odor Testing & Olfactometry Calculators
Free tools for every odour assessment — odor concentration calculator, dilution ratio calculator, odor emission rate calculator, detection threshold calculator, ventilation dilution calculator, and odor impact distance estimator.
Odor Concentration Calculator
Convert a dilution-to-threshold ratio into an odour concentration in ouE/m³, the way EN 13725 olfactometry defines it.
Dilution Ratio Calculator
Work out an olfactometer's dilution factor from clean-air and sample flows, and the concentration presented to the panel.
Odor Emission Rate Calculator
Multiply an odour concentration by a source's air flow to get its Odour Emission Rate in ouE/s.
Detection Threshold Calculator
Combine a panel's individual threshold estimates into a group threshold as the geometric mean.
Ventilation Dilution Calculator
From volume and air changes per hour, get clean-air flow, steady-state concentration, and purge time.
Odor Impact Distance Estimator
Screen the separation distance at which a source's odour falls to an acceptance criterion.
The Museum
Wander an illustrated museum built entirely from Wikipedia and Wikimedia Commons — browse its collections, each in its own gallery, purely for the pleasure of looking and learning.
Tour the museum →From the Journal
Guides on measuring odour, dynamic olfactometry, emission rates, ventilation, and odour mitigation — practical reading to pair with the calculators above.
The Science of Smell Quality Control: Ensuring Consistency in Fragrance Production
Mastering Smell Quality Control: Techniques, Tools, and Industry Standards for Odor Testing Professionals In today’s hyper-sensitive markets, controlling olfactory experiences isn’t just about pleasant scents—it’s a science demanding precision, consistency,…
The Science and Practice of Odor Mitigation Strategies: A Comprehensive Exploration
The Science and Practice of Odor Mitigation Strategies: A Comprehensive Exploration In an era where environmental consciousness is paramount, understanding effective odor mitigation strategies has become essential. Whether you’re managing…
The Future of Smell Detection: Exploring Electronic Noses and Their Revolutionary Impact
The Future of Smell Detection: Exploring Electronic Noses and Their Revolutionary Impact In an age where technology is redefining human capabilities, electronic noses stand out as groundbreaking innovations that mimic…
Understanding the Importance of Industrial Odor Testing
The Science and Practice of Industrial Odor Testing: Ensuring Environmental Compliance and Public Health Safety In an era where environmental consciousness is paramount, industrial odor testing has emerged as a…
The Invisible Sentinel: Understanding Environmental Odor Monitoring in Modern Society
The Invisible Sentinel: Understanding Environmental Odor Monitoring in Modern Society In an era where urbanization accelerates and industrial activity expands, environmental odor monitoring has emerged as a critical tool for…
The Invisible Menace: Understanding Odor Pollution and Its Impact on Communities
The Invisible Menace: Understanding Odor Pollution and Its Impact on Communities Odor pollution is an often-overlooked yet significant environmental issue that affects millions around the world. Unlike other forms of…
Keep Learning
Plain-language explainers on odour units, the dilution-to-threshold method, emission rates, sensory panels, and dispersion — everything you need to understand the numbers the tools produce and read an odour assessment with more confidence.
Visit the Learn hub →