• Sensible, convenient, easy to use US-EPA recommended design.
• Stainless Steel (SS) construction with quick-disconnect fittings.
• Includes Stainless Steel support chain, 50-foot rope,
     and float ring.
• Isolates the surface from the effects of wind, precipitation,
     and solar radiation.

Overall Hood Diameter:  0.14 m (16″)

Surface Area under Hood:  0.13 m2

Four Ports:  1) sweep gas/air;
                    2) sample line;
                    3) excess gas/air vent; and
                    4) optional thermocouple probe.

Included Rope:  50′  –  3/8″ Nylon Braided Rope

Included Flotation:  Standard 16″ Tube

Sweep gas supply and regulator NOT included.

Q: Does the AC’SCENT Flux Hood comply with EPA sampling methods?
Yes, see EPA document PB86-223161, “Measurement of Gaseous Emission Rates from Land Surfaces Using an Emission Isolation Flux Chamber.”

Q: When I use the Flux Hood what flux gas/air do I use?
The protocol for your project may dictate zero-air or high-purity nitrogen (HPN) with or without a helium (He) component.

Q: What is a typical sweep gas (air) rate?
25-liters per minute per square meter is a typical sweep gas rate, which is 3.5-LPM for the 0.13-m2 under the AC’SCENT Flux Hood.

Q: What is the typical sample collection rate?
The Sample collection rate depends on your project protocol; a typical sample collection rate is 1 to 2 LPM.

AC’SCENT Emission Isolation Flux Chamber Product Sheet (pdf)

AC’SCENT Flux Hood Schematic (pdf)

EPA Flux Hood Document (pdf)