# A.I.R Tool

> Airborne Infection Risk calculator from CO2 based Ventilation Rates.

Canonical page: [https://chrome-stats.com/d/processing.test.airtool](https://chrome-stats.com/d/processing.test.airtool)

## Overview

- **ID:** `processing.test.airtool`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Caffeine Overdrive
- **Category:** TOOLS
- **Downloads:** 269
- **Version:** 5.0
- **Last updated:** 2018-09-05
- **First published:** 2018-09-05
- **Publisher country:** ZA
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=processing.test.airtool)
- **Privacy policy:** [https://sites.google.com/view/caffeineoverdrive-privacy/home](https://sites.google.com/view/caffeineoverdrive-privacy/home)

## Description

A quick and simple tool for estimating real-time natural ventilation rates in public indoor spaces and comparing them to building regulations and recommendations.<br><br>Use a blue-tooth linked COZIR CO2 sensor to determine instantaneous indoor ventilation rates.<br>The app will also define high, medium and low airborne transmission risk levels and recommend occupancy limits based on WHO recommendations.<br><br>Important:<br>CO2 sensor must be in streaming mode.<br>Pairing to blue-tooth device must be completed prior to launching app.<br>Bluetooth device must be named BTCO2 for recognition by app.<br>App will run in manual mode until correct blue-tooth device is found.<br>In-App calibration of sensor happens automatically. Just confirm the known outdoor reading from device and click accept.<br>Give sensor a few minutes to warm up before proceeding with measurements.

## Rankings

- #1,602,084 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/processing.test.airtool)