VOC-Breeze™

Smart Air Sampler

Introducing the VOC-Breeze from Entech Instruments—the most sophisticated yet easy-to-use solution for collecting air samples in evacuated canisters. The VOC-Breeze delivers precise, constant rate sampling accurately filling canisters to a programmable 2-3.5″ Hg below local atmospheric pressure, achieving a consistent maximum fill Volume every time. This level of control ensures optimal dilution of trace contaminants within the canister, supporting accurate analyses and enabling multiple tests from a single Sample. The VOC-Breeze records critical sampling parameters, including start/end times, initial and current pressures and temperatures, providing a highly reliable and time-weighted sampling process that exceeds the accuracy of all other competing solutions currently on the market.

Did we say SMART?

The ability to enter the serial number of each canister ties it to a specific sampling event and location, ensuring a superior chain of custody that was often lacking in the past. An optional handheld  controller (VOC-VIEW) or computer with a serial or Bluetooth connection allows for both office and field programming and data retrieval, providing maximum flexibility. Additionally, the smart and weather-resistant push-button interface with LED feedback makes leak checks, flow confirmation, and local atmospheric pressure recording easy to perform in the field without needing an external  device. For even greater convenience, Bluetooth pairing with a single Entech-supplied dongle allows connection to hundreds of VOC-Breeze samplers from a single device, simplifying programming  and data retrieval in the office or the field.

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Product Features

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Sampling can be initiated via a  local start button, programmed start time, remote wireless connection or external trigger such as a TVOC sensor.

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Extremely Accurate Temperature Compensated Sampling

The VOC-Breeze measures and records at least 100 temperature compensated pressure points during the fill process, ensuring canisters fill at a constant rate with less than a 0.5% error over the  Sampling period

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Every sampling ends precisely at the target vacuum pressure, ensuring accurate and consistent results every time

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Communicate with the VOC-Breeze using stationary or portable PC devices, or the amazing VOC-VIEW SyncPad that optimizes the VOC-Breeze experience.

Maximizing the Amount of Sample Collected

Unlike many of today’s mechanical flow controllers which require setting the target vacuum at 5-6” Hg due to inherent flow inconsistencies, the VOC-Breeze provides precise fill rate control. This accuracy not only optimizes the sample volume, allowing for multiple analyses if needed, but also supports the use of smaller canisters, reducing transport costs while allowing automated robotic sample handling in the lab — further lowering total cost per sample.

Choosing from several target final pressures in the range of 2-3.5″ Hg below atmospheric pressure, the VOC-Breeze achieves that target pressure within +-0.2″ Hg, thereby optimizing the amount collected every time, while creating unparalleled, constant time weight average sampling.

Versatile Fill Options

VOCB achieves fill times as long as 1 month into a 6L canister, 2 weeks into a 2.5L canister, & 1 week into a 1.4L canister.

Next Generation Flow Control

The VOC-Breeze “breathes” the sample in, much like people breathe, but in such tiny breaths that a fill time as long as 1 month can be achieved with a proven, recorded linear increase in pressure during the entire event. A Silonite coated flow path ensures complete delivery of the sample, and the VOC-Breeze accomplishes both On/Off control and flow control using less Viton than today’s mechanical canister samplers, so cleanliness is no issue.

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    Flexible Communication

    Bluetooth connectivity dongle for easy setup and programming

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    Weather-tight Enclosure

    Ensures durability and reliability in all conditions.

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    Extended Deployment

    Optional solar panel for long-term, remote monitoring.

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    Comprehensive Data Logging

    Comprehensive Data Logging: Records atmospheric pressure, initial & final vacuum, GPS location, and hundreds of temperature compensated pressure readings while sampling.

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    Method Compatibility

    Compatible with new US EPA Methods 327 and TO-15A.

VOC-VIEW SyncPad

The VOC-VIEW SyncPad is a compact handheld touch screen device designed to interface seamlessly with the VOC-Breeze, providing an intuitive user experience for field operations. It supports interaction with lab and field personnel through its graphical interface,, allowing users to program the VOC-Breeze, log sampling runs, and retrieve data efficiently. The VOC-VIEW displays essential sampling information such as start/end times, pressure readings (Local Atm, Start, End, % error from Target), and allows data to be uploaded to a host device at the lab or office for further analysis. The VOC-VIEW SyncPad enables centralized programming of multiple VOC-Breeze units with 1 touch field programming based on which VOC-Breeze serial number it is communicating with.

Programming & Data Sync

The VOC-VIEW SyncPad software displays essential sampling information, such as start/end times, pressure readings, and temperature, and allows users to upload data to a host device for further analysis. Additionally, it supports procedural downloads, canister serial number entry, and pressure sensor calibration, flow and leak checks, enhancing the overall efficiency and reliability of sampling operations.

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