
A little background about how we got here.
About Us:
The Pacagen Story
Hey there! Thanks for stopping by. We started Pacagen because, well, we're pet people. Like, really pet people. And we totally get it: there's nothing quite like the unconditional love of a furry friend. But then there are allergies. I'm Evan Zhao, the founder of Pacagen, and this hit especially close to home. My wife, Dr. Siyang Han, a lifelong cat lover, suddenly developed severe cat allergies. We're talking the full shebang: itchy eyes, runny nose, congestion, constant sneezes, and just plain misery. It made living with our new cat, Ms. MiaoMiao, incredibly difficult, and honestly, we even faced the heartbreaking thought of having to rehome her.


With my background in science and engineering, I saw how frustrating this was. We'd tried everything: HEPA filters, air purifiers, medications - you name it. But nothing truly solved the problem.

So, we thought: What if we could fix that?
What if we could neutralize the allergen right at the source? That drive led me to dig deep into the science, and ultimately, to develop the innovative technology that became Pacagen.
Now, thanks to Pacagen, we can comfortably live with MiaoMiao again. No more sneezes, no more itchy eyes, and definitely no more heartbreaking goodbyes.
We're not a huge, faceless corporation. We're real people, just like you, who genuinely wanted a better way. We poured our passion (and a whole lot of science!) into creating our Allergen Neutralizing Sprays. We're incredibly proud to be the #1 Cat Allergen Home Spray, and even prouder that over 50,000 happy customers are now enjoying comfort around their pets and in their homes, despite their allergies. Our mission is simple: to empower people to fight back against allergens - reclaiming comfort, restoring connection, and enhancing wellbeing in the spaces they call home.
Thanks for being part of the Pacagen family.
Cheers, The Pacagen Team
Click here to learn more about the discovery, science & our unique formulation process!

Dr. Evan Zhao
PhD in Chemical Engineering, Princeton University
Former Principal Investigator at Harvard University

Dr. Evan Zhao
PhD in Chemical Engineering, Princeton University
Former Principal Investigator at Harvard University

Dr. Siyang Han
PhD in Molecular Biology, Princeton University
Strategy Leader in the Pharmaceutical Industry

Dr. Andrew Findlaytor
Doctor of Veterinary Medicine, University of California, Davis
Senior Director of Veterinary Strategy and Services