I’d want to see some third-party testing around eye safety before putting this in my home.

> "Importantly, the device additionally uses millimeter-wave radar to scan its field of view for larger objects such as people and pets. If any of these are detected, its mosquito-zapping laser will not fire."

I note the startup doesn't actually disclose the laser output power anywhere, or what regulatory class that power level falls in. It's federal law[0] that commercially-sold lasers are labelled with this information.

[0] https://www.law.cornell.edu/cfr/text/21/1040.10

Microsoft alum fights malaria by zapping mosquitoes with lasers | ZDNET https://share.google/qd3yWi72Zk9yRyxoh

The fact it doesn't do houseflies is a huge downer though.

Say you need to deliver at least M joules of energy at the wavelength of the laser to the mosquito over at most T seconds in order to kill it, and suppose and eyes must receive less than E joules of energy at the wavelength over that same timeframe to not be damaged.

Encircle the area you want to protect with at least M/E lasers each individually each with low enough output power to not damage an eye if they hit is directly. Control all these lasers with a common controller which picks out a target and fires all the lasers at it simultaneously.

The target gets hit with all the lasers receiving a fatal rapid influx in energy. Anyplace else in the area that gets hit by any beams that miss the target should only get hit by one and so be safe.

Add a suitable safety margin by increasing the number of lasers and decreasing their individual power so that even if a person or animal gets a direct hit from one beam plus reflections from a couple more they will be safe.

That should be safe for almost all normal rooms. Train the installers to refuse to install in places with a lot of curved reflective surfaces, such as mirror coated elliptical room where a miss trying to zap a mosquito at one focus could be bad news for a human at the other focus.