Over 400 Published Studies Performed Using RTube™
The Standard in Exhaled Breath Condensate (EBC) Collection Devices
Celebrating 25 Years in Breath Research
Our RTube Breath Condensate Collection Device has been used over 230,000 times to sample exhaled aerosols and VOC’s for the study of airway biomarkers in academic, pharmaceutical, and government research studies since 2000.
No other company has continuously supported the breath research community as long as we have, and we are very proud to have earned the trust of researchers worldwide. From product innovation to protocol development to logistical support, we’ll help you get the best possible study results.
RTube
Exhaled Breath Condensate Collector
Disposable hand-held breath condensate collector for use any time, any where.
RTubeVOC
End Tidal Air Collector for Volatile Organic Compounds.
Disposable single-breath collector selectively captures the last 65 ml of exhalate.
RTubeVENT
Exhaled Breath Condensate Collector for Intubated Patient Use.
Disposable breath condensate collector for in-line use in ventilator expiratory limb.
Publications
Advancements in EBC research using RTube
Explore the forefront of respiratory research with the RTube exhaled breath condensate collector.
Starter Kits
Get preliminary data for your grant application quickly and inexpensively with these all-inclusive Starter Kits.
RTube™
25 Collection Starter Kit- Breath Condensate
- Gas-Phase Breath
- Ambulatory Population
- Intubated/Ventilated Population
- DNA, RNA, miRNA
- Proteins
- Deep Lung Volatile Organic Compounds
- pH
- Oxides of Nitrogen
- Water-Soluble Volatiles
- Non-Water-Soluble Volatiles
- Arachidonic Acid Metabolites
- Cytokines
RTubeVOC™
25 Collection Starter Kit- Breath Condensate
- Gas-Phase Breath
- Ambulatory Population
- Intubated/Ventilated Population
- DNA, RNA, miRNA
- Proteins
- Deep Lung Volatile Organic Compounds
- pH
- Oxides of Nitrogen
- Water-Soluble Volatiles
- Non-Water-Soluble Volatiles
- Arachidonic Acid Metabolites
- Cytokines
RTubeVENT™
25 Collection Starter Kit- Breath Condensate
- Gas-Phase Breath
- Ambulatory Population
- Intubated/Ventilated Population
- DNA, RNA, miRNA
- Proteins
- Deep Lung Volatile Organic Compounds
- pH
- Oxides of Nitrogen
- Water-Soluble Volatiles
- Non-Water-Soluble Volatiles
- Arachidonic Acid Metabolites
- Cytokines
Planning a Clinical Study?
We can help with study methods development, protocol writing and review, and logistics planning.
How We Manufacture the RTube™
Because even trace contaminants can skew biomarker data, Respiratory Research, Inc. employs a proprietary cleaning process that removes both chemical residues and organic matter. Manufactured in an ISO 8 cleanroom, each RTube™ is sealed to guarantee pristine breath analysis—ensuring accurate breath biomarkers with every use.
Effectiveness of Exhaled Breath Condensate Collection Using RTube® and Cooling Sleeve Chilled in Household Freezer
Chilled in a household freezer, the RTube® reliably collects Exhaled Breath Condensate for breath analysis and breath biomarkers. This study shows yields remain near-constant across a wide temperature range, reinforcing RTube’s consistent performance in real-world clinical conditions.
Journal Article Summary – Measuring RNA in Breath Condensate
The RTube has successfully been used to isolate RNA, microRNA, and DNA from Exhaled Breath Condensate (EBC). While the collection process of EBC is similar for each target, the isolation steps differ. This Journal Article Summary, based on Dr. Guillermo Barreto’s EMBO Medicine study, highlights a non-invasive approach to nucleic acid isolation for early-stage lung cancer detection.