Room and unit air treatment
FreshFilter Fresher air, room by room.
FreshFilter brings UV-C and photocatalytic air treatment to the places a central system can’t reach — hotel rooms, modular buildings, classrooms and offices — in units that fit the equipment and spaces you already have.

The problem
Odor complaints, stale rooms and musty smells often come from equipment too small for a whole-building fix: fan coils, wall-pack units, rooms with no ducted supply at all.
Our answer
FreshFilter treats the air right where people breathe it. Every model pairs UV-C with PCOR photocatalytic media that targets odors and VOCs, and most add filtration — in a form factor that drops into what’s already there.
Why it matters
What FreshFilter does for you.
Fits what you already have
Fan-coil inserts, wall-pack retrofits, ceiling tiles, in-wall and mobile units — no major renovation required.
Tackles odors at the source
UV-C plus photocatalytic media work on the biological and chemical sources of odor, not just the symptoms.
Quiet and out of the way
Units live in the ceiling, wall or equipment cabinet — occupants get better air without another appliance in the room.
Measured, not assumed
Pair FreshFilter with Cognituv Connect air-quality sensors and the difference shows up in the data.
Find the right fit
FreshFilter-VCU
Drops into a vertical fan coil in place of the old dust filter — ideal for hotels and multi-family buildings.
FreshFilter-ME
Retrofits the wall-pack HVAC on modular, trailer and small detached buildings.
FreshFilter Tile
A 2×2 ceiling tile that replaces a supply diffuser — for offices, classrooms and clinics.
FreshFilter In-Wall
Recessed or surface-mounted, for rooms without a drop ceiling.
FreshFilter PRO
High capacity for large spaces that outgrow in-room units.
FreshFilter Mobile
Portable treatment on a cart, wherever a fixed unit isn’t practical.
Identify · Apply · Verify™
How it works with Cognituv.
Identify
Room-level sensors show what occupants are actually breathing — CO₂, VOCs, particulates, humidity.
Apply
The FreshFilter model that fits the room or the equipment.
Verify
The same sensors keep reporting into Cognituv Connect, so the improvement is on the record.
Is FreshFilter right for your facility?
Start with an assessment. We measure first, recommend second — you see the data either way.