Ceiling air purifier
Overwatch 2x2: Cleaner air from the ceiling grid.
Overwatch 2x2 drops into a standard 2×2 ceiling grid and treats room air with UV-C, photocatalytic media and filtration. It’s quiet, out of the way, and runs whenever the room is in use.

The problem
Waiting rooms, nurse stations, classrooms and offices need better air than the building system delivers, but there’s no floor space for a portable unit and no budget to rework the ductwork.
Our answer
Overwatch 2x2 takes the place of a ceiling tile. It draws room air through a pre-filter, a UV-C chamber with two high-output lamps, and photocatalytic and carbon media, then returns it to the breathing zone.
Why it matters
What Overwatch 2x2 does for you.
Zero footprint
Installs in a standard grid ceiling. No floor or wall space, and nothing for occupants to move or unplug.
Quiet enough for patient rooms
Variable fan speed from 45 to 220 CFM at 15–47 dB.
Odors and VOCs, not just particles
Dual nano-structured TiO₂ layers and activated carbon target VOCs and odors, with MERV 8 or HEPA pre-filter options.
Easy to service
Tool-free access panel with automatic anti-tamper shutoff and LED status lights. Control it by remote, wall switch or IoT app.
Identify · Apply · Verify™
How it works with Cognituv.
Identify
Room air-quality sensors show where and when air quality drops.
Apply
Overwatch units placed by room size and occupancy, installed in the existing ceiling grid.
Verify
The same sensors keep reporting into Cognituv Connect, so the change is on the record.
Is Overwatch 2x2 right for your facility?
Start with an assessment. We’ll size it to your equipment, or tell you what fits better.