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Mosquito trap DIY 8,000 mosquito kill reduce ZIKA DENGUE MALARIA MaxxAir Fan CO2

GREENPOWERSCIENCE · 6.7M views · 2017-07-07 · 6:12

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Overview

A DIY demonstration of a fan-and-screen mosquito trap that uses carbonated water as a CO2 attractant. The creator reports catching about 8,000 mosquitoes in two nights.

On Hacker News

HN commenters point people to it as a cheap, simple, effective way to kill mosquitoes, and some report trying it successfully.

Recommended by 4 HN people across 4 months · HN mentions 2018–2025

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What people said

al_borland · 2025-11 · Recommendation

There are some YouTube videos out there where guys attach a screen (or net) to a high powered fan and catch/kill insane amount of mosquitoes. [VIDEO]

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johnthedebs · 2025-07 · Recommendation

The comments saying that other sources of water need to be removed are spot on. Another technique I've tried which works (observably) well is described in this video: [VIDEO] tl;dw: Get a big drum fan with a screen on the back, attached with small/powerful magnets. Mosquitos are such poor flyers that they get pulled against the screen and can't escape, and they pretty quickly desiccate and die. Most other flying insects don't get caught, although there is a bit of collateral (some moths and lacewings, unfortunately). Another benefit of the fan is that you can hang out in front of it and mosquitos mostly won't bother you there either. I did this in our shared backyard space in Brooklyn and would catch hundreds/thousands of mosquitos per week. Despite that, there were still a ton of mosquitos in the area so it's best combined with other methods of control. edit: better/updated video link

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rainbowzootsuit · 2022-08 · Recommendation

There's a lot of tricks out there for killing mosquitoes but the window screen on a fan one is a personal favorite: [VIDEO]

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Sources

Video by GREENPOWERSCIENCE, played through YouTube.

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