Your best option to target all mosquito species in your yard. The addition of CO2 with our most effective traps armed with Biogents patented BG-Sweetscent attractant will lure and catch blood-seeking micro predators. CO2 tank not included. Please find more information on using CO2 before you invest. We recommend AirGas or a similar company to source and refill your tank.

What's included
  • 2 BG-Mosquitaire traps
  • 2 Outdoor-rated power supplies
  • 1 CO2 Booster Kit (includes regulator, emitter nozzle, and tubing)
  • 1 additional CO2 Emitter nozzle
  • 1 additional CO2 tubing
  • Y-Connector for CO2
  • Y-Connecter for power
  • 1 power extension cord
  • 2 Funnel nets
  • 4 Catch Bags
  • 4 BG-Sweetscent attractant packs (each packet is effective for 2 months)

The CO2 Advantage

  • CO2 is the greatest attractant for the majority of blood-sucking insects
  • CO2 attracts day and nighttime biters
  • Adding CO2 has been proven to increase your catch rates by 400%
  • Add the BG-Timer to schedule release times to increase CO2 efficiency
Learn more about using CO2

What makes Biogents traps different ?

  • Scientifically proven efficacy of up to 87% less mosquito bites
  • Worldwide homeowners, researchers, professional and government organizations use Biogents traps
  • Patented capture method and insecticide-free mosquito attractant
The Biogents Difference

FAQs

What does BG-CO2 do?

If you want to increase your outdoor catch rates even further or are you bothered by mosquitoes during the evenings, the best solution is provided by the BG-Mosquitaire with CO2. Our BG-Booster allows you to add CO2 to your BG-Mosquitaire from a CO2 cylinder. The addition of CO2 makes the BG-Mosquitaire even more attractive for a wide range of mosquitoes including flood water or dawn biting mosquitoes and can multiply the catch rate of tiger mosquitoes by 10.

What is the BG-Booster CO2 for?

The BG-Booster CO2 combines our traps with CO2 which attracts more mosquitoes. By releasing the optimum quantity of CO2, you can increase catch rates. The addition of CO2 through our BG-Booster CO2 by connecting the trap to a CO2 bottle (not included in the contents) makes the BG-Mosquitaire even more attractive for a wide range of mosquitoes including flood water or dawn biting mosquitoes and can multiply the catch rate of tiger mosquitoes by 10.

What is the BG-CO2 Timer for?

The BG-CO2 Timer helps you regulate the flow of your CO2 cylinder. We recommend releasing 1.1 lbs. CO2 per day (see gauge on the BG-Booster CO2). You can program the BG-CO2 Timer to only release CO2 in the hours the mosquitoes are most active (features two timing windows). These are usually at sunrise and sunset. We suggest programming the timer from 06:00 to 10:00 a.m. and from 04:00 p.m. to midnight (time to be adapted for each region). But this depends on the mosquito species as well as on the local mosquito population. Especially tiger mosquitoes are also very active during the day.

Where can I find CO2 bottles?

Note: The gas bottles are not included in the contents.
The gas bottles can be acquired or rented at drink retailers or bottle depots for a deposit. A door-to-door delivery service may also be available in some locations.

The following sites offer competitive renting prices:
Roberts Oxygen
National distributor of food grade CO2: Air Gas
Air Gas has over 900 locations throughout the US.
Other CO2 suppliers are mostly regional, Welding and Brewing suppliers.

Why do I have to use CO2?

Carbon dioxide (CO2), a key component of human breath, is the primary attractant for most blood-sucking insects, including mosquitoes. If you're mostly bothered by mosquitoes in the evening or near flood areas, they are likely house or flood mosquitoes, not tiger mosquitoes.
To increase catch rates for these species, add CO2 to the BG-Mosquitaire trap. CO2 works in synergy with the BG-Sweetscent to attract more mosquito species, including tiger mosquitoes. The BG-Booster CO2 ensures optimal distribution and allows you to adjust the CO2 release based on local mosquito activity. The CO2 output is similar to the amount produced by a small child.

Is CO2 dangerous for me?

CO2 must always be handled safely, but if you only use it outside as recommended, there should be no risk at all for you or the environment. A CO2 cylinder should always be placed vertically, ensuring that it cannot fall. Please refer to your supplier's instructions.

Is CO2 dangerous for the environment?

The quantity of CO2 released per day is the same as the amount a young child breathes in one day. CO2 is colorless, tasteless, non-flammable, with a very faint sour smell. It is reclaimed from industrial production units (production of ammonia, bioethanol, etc.), so its use as a mosquito attractant does not constitute an additional contribution of harmful CO2 to the planet, but is in fact only a delayed diffusion of recycled CO2 (industrial waste). More information here.

How long does a CO2 bottle last?

This depends on the size of the CO2 bottle. We recommend releasing 1.1 lbs. per day, which means that a 22 lbs. CO2 tank will last around 20 days. Using a BG-CO2 Timer, you can reduce the CO2 release to only eight hours a day (a third of the first example), then the tank will last about two months (60 days).

Please read our general FAQs page to find out more.

Customer Reviews

Based on 59 reviews
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D
Dean
Great products, They work! Customer service is excellent.

Amazing customer service and support. Better yet, the products really work. Enjoying my house mosquito (Culex pipiens) free Austin Texas yard again with the double C02 traps. Cheaper than spraying every 3 weeks over months.

Going outside at sunset was impossible, i would get eaten alive. Now i can go out without any repellent applied and hardly . Traps are swarming! I think it does a good job of keep them away and hovering around the traps as well. So even if kill rate varies, its a good honey pot for mosquitos out on the hunt.

A bit of an investment up front, but its well worth it. Just do it. And get the C02 setup, its much much more effective.

Thank you so much for your amazing feedback!

We’re thrilled to hear that the CO₂ traps have made such a big difference for your yard in Austin—especially during those tough sunset hours. Hearing that you can now enjoy your outdoor space mosquito-free and without needing repellent is exactly what we hope for our customers.

You're absolutely right—the CO₂ setup can be a game-changer, especially for aggressive species like Culex pipiens. And we love how you described it as a “honey pot”—that’s a perfect way to put it! Even when mosquitoes aren’t immediately caught, attracting and holding them near the trap instead of you is a big part of the strategy.

Thanks again for trusting Biogents and for sharing such a thoughtful review. We're here anytime you need support or have questions!

j
joseph sasfy

Works perfectly, easy to install

Thank you so much for your feedback! We're glad to hear the installation was easy and that the system is working perfectly for you. If you ever have any questions or need tips for optimizing performance, feel free to reach out—we’re always happy to help. Enjoy your mosquito-free space!

C
Clay A
Highly recommended

I recommend this trap to everyone! My neighbors can tell when my CO2 tank runs out. I'm always surprised to see how much it catches when I change out the bag. I like how there's two bags, but I wish the kit came with a second net cone. A 20lb CO2 tank last about a month, but it's worth it! I'll keep recommending this and using it!

Thank you so much for the great review! We're thrilled to hear how well the trap is working for you — and it's awesome that even your neighbors notice when your CO₂ runs out!

Regarding your comment about the net cone, you can absolutely purchase a replacement. You can purchase the Funnel Net for BG-Mosquitaire on the link below:
https://us-shop.biogents.com/products/funnel-net-bg-mosquitaire

Thanks again for your support and for recommending us — we truly appreciate it!