What does air test consist of?


AIR TEST is the trademark registered by Centro Diagnóstico Calderón for its hydrogen & methane breath test, for sugar intolerances and bacterial overgrowth in small intestine.


WHAT DOES AIR TEST DETECT? SIBO (Small Intestine Bacterial Overgrowth) Intolerance:






SAMPLE: Breath (air exhaled by the patient)


METHODOLOGY AIR TEST bases its methodology on the quantification of the concentrations of: Hydrogen, Methane and Carbon Dioxide In the patient’s breath (after the ingestion of a controlled amount of substrate)

Before ingesting the substrate, a baseline sample of the air exhaled by the patient is obtained as a negative control, and it is then compared with breath samples obtained subsequently, at different times, during the digestive transit of the aforementioned substrate.


Obtaining high concentrations of these gases, will indicate that transformation of the substrate is taking place.


AIR TEST has an added value when it is compared to the breath tests in the current market. Through the measurement of methane, Air test reduces false positives, thus detecting the presence of intestinal archaea, which go unnoticed by traditional breath tests (which only measure hydrogen).


The stability of the samples and the functionality of the sampling kits make this test one of the star services of Centro Diagnóstico Calderón, contributing to improve digestive health of the patiens of many health centres.

Types of air test and substrates

Lactose intollerance


Fructose Intollerance


Saccharose intollerance


Sorbitol intollerance


Fructose + Sorbitol Intollerance

Fructose + Sorbitol

Sibo detection


Which patients are eligible for the test?


AIR TEST suits the following patients:


  • Patients with Genetic or Primary Intolerances
  • Patients with Functional or Acquired Intolerances
  • Patients with Bacterial Overgrowth
  • Patients with dyspepsia of unknown origin, and who present the following symptoms:
  • Sickness
  • Vomiting
  • Diarrhea
  • Explosive depositions
  • Abdominal pain
  • Abdominal discomfort
  • Abdominal distension
  • Heartburn
  • Bowel noises
  • Flatulence


As a consequence of these disorders, an incorrect absorption of nutrients can take place, and an alteration of intestine permeability that derives from transit of harmful molecules.


That makes the diagnosis of these pathologies very important, thus allowing the patient to follow a treatment or guidelines that lead to restoration of the intestinal ecosystem.

Professional profile for the prescription of air test

  • Digestive medicine
  • General medicine
  • Clinical laboratory
  • Pharmacy with medical advice or diagnostic services
  • Nutritionists

Do you belong to one of the above stakeholders and want to know more about AIR TEST? Are you a laboratory distributor and are you interested in distributing AIR TEST in your country?

  • Specific details of the test
  • Examples of results report, documents and specific instructions
  • Collaboration conditions
  • Other tests at centro diagnóstico calderon