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Hospitality

Rooms that smell fresh every night they’re booked.

Musty rooms cost bookings and reviews. Cognituv treats the fan coils, vertical cabinet units and common areas where odors start, and tracks room air quality in Cognituv Connect.

Book an assessmentSee where Cognituv fits
Case studyA problem room back in service, 12 months without a complaintHospitality · Hotel · New York Downtown · New York, NYIAQ & odorRead the case study
Illustration: full-service hotels cut open, with Cognituv treatment and Cognituv Connect where they go

What’s at stake

The problems we hear most.

  • Odors start in the equipment

    Vertical fan coils and PTACs run wet and dark. Biofilm on the coil and drain pan is a common source of musty smells.

  • Out-of-order rooms earn nothing

    A room pulled for odor remediation is lost revenue.

  • Common areas are judged too

    Lobbies, fitness rooms, restaurants and corridors shape first impressions.

  • Crews are stretched

    Fixes have to drop into existing equipment between turns.

Results from the field.

All case studies →
AIR-QUALITY COMPLAINTS12 months. Zero complaints.Complaints36912months0 complaints in the 12 months sinceFreshFilter retrofitRoom back in service Complaints12 months0 complaints in 12 monthsFreshFilter retrofitRoom back in service
Complaints12 months0 complaints in 12 monthsFreshFilter retrofit
IAQ & odor

IAQ & odor

Conrad Hotel

Hospitality · Hotel · New York Downtown · New York, NY

A problem room back in service, 12 months without a complaint

One guest room kept drawing odor complaints that maintenance, deodorizers and new filters couldn’t fix. A FreshFilter in its cabinet unit put it back in service, rented with zero complaints since.

Read the Conrad Hotel case study →

Where Cognituv fits

What we’d install, and where.

Illustration: a hotel with its top floor and ground floor cut open, with FreshFilter-VCU in the filter slot of each guest room’s vertical fan coil (1), Overwatch 2x2 in the lobby ceiling grid over reception (2), a sealed wall purifier high in the fitness room (3), in-line UV-C on the pool’s filtration loop after the pump and filter (4), a Cognituv Connect air-quality sensor in each guest room (5) and a Cognituv Connect water-quality probe on the pool’s return line (6)

Point at a line, or tap it, to light its parts in the building.

Facility types

What changes from one facility type to the next.

What we look at first, where Cognituv fits and what you get from each item, the systems we usually find and the codes and standards to check. Codes and standards are listed for reference: a listing isn’t a compliance finding, and doesn’t mean any product, Cognituv’s included, is certified to one.

  • Full-service hotel and resort

    Guest rooms with restaurants, meeting rooms, pools and back-of-house, often with a cooling tower on the roof.

    Includes: Full-service hotel · Resort

    We look at
    • Musty odors that start in guest-room fan coils
    • Lobbies, corridors and meeting rooms
    • Pools, spas and cooling-tower water

    Where Cognituv fits and what you get

    • FreshFilter-VCUWorks on musty odors at their source in each guest room, inside the fan coil already there.
    • Overwatch 2x2Treated air in lobbies, corridors and meeting rooms, with nothing on the floor or the wall.
    • Cognituv GridCleaner coils on the air handlers serving ballrooms and restaurants, with fewer chemical cleanings.
    • Pools and spasUV-C on the pool and spa loop, used alongside your chlorine program.
    • Cooling tower UV-CThe tower loop treated as it circulates, with a record for your water management program.
    • Cognituv Connect: room airYou know which rooms need attention before guests do.
    Typical systems
    Vertical fan coils (VCUs) · PTACs · Central air handlers · Cooling towers
    Codes and standards
    IBC groups to screen
    R-1 (Residential: transient) · A-2 (Assembly: dining, drinking and casino gaming) · A-3 (Assembly: other assembly)

    Plan sensors for this facility Case study: Conrad Hotel

  • Select-service and extended-stay hotel

    Guest rooms with few shared services, a small crew and a PTAC or split system in nearly every room.

    Includes: Economy hotel · Select-service hotel · Extended stay

    We look at
    • PTAC coils behind guest complaints
    • Rooms pulled out of order for odor
    • Leaks and humidity

    Where Cognituv fits and what you get

    • FreshFilter In-WallWorks on stale and musty odors in the room itself, recessed in the wall with no floor space taken.
    • Upper-air & in-room UV-CFree-standing purifiers move to whichever room needs them, aimed at odors and VOCs.
    • Overwatch 2x2Treated air in the lobby and breakfast room, from a quiet unit in the ceiling grid.
    • Cognituv GridCleaner coils on the rooftop units serving corridors and common areas, with fewer chemical cleanings.
    • Cognituv Connect: room airHumidity and air quality by room show which rooms to check before a guest complains.
    • Cognituv Connect: leak detectionAn alert when a drain pan starts to hold water, before the leak reaches the room below.
    Typical systems
    PTACs · Split systems · Rooftop units
    Codes and standards
    IBC groups to screen
    R-1 (Residential: transient) · R-2 (Residential: permanent, multi-unit)

    Plan sensors for this facility

  • Multifamily residential

    Apartment and condominium buildings, from high-rise towers to affordable housing, where residents live with the HVAC every day.

    Includes: Apartment tower · Condominium tower · Affordable and workforce housing

    We look at
    • Mold and moisture in units
    • Odors moving between units and corridors
    • Leaks before they reach the unit below

    Where Cognituv fits and what you get

    Typical systems
    Fan coil units · PTACs · Central air handlers · Window and split units
    Codes and standards
    IBC groups to screen
    R-2 (Residential: permanent, multi-unit) · R-3 (Residential: smaller uses)

    Plan sensors for this facility

  • Restaurant and commercial kitchen

    Dining rooms and kitchens with hood exhaust, grease and heat working on the HVAC.

    Includes: Full-service restaurant · Quick-service restaurant · Hotel kitchen

    We look at
    • Kitchen odors reaching the dining room
    • Coils on rooftop units serving the kitchen
    • Walk-in cooler temperature

    Where Cognituv fits and what you get

    Typical systems
    Rooftop units · Split systems · Kitchen hood exhaust · Walk-in coolers
    Codes and standards
    IBC groups to screen
    A-2 (Assembly: dining, drinking and casino gaming) · B (Business)

    Plan sensors for this facility

  • Casino, theater and convention center

    Gaming floors, auditoriums and exhibition halls that swing from empty to full in an hour.

    Includes: Casino gaming floor · Performance venue or cinema · Convention and exhibition center

    We look at
    • Smoke and odor on gaming floors
    • Air at peak crowds
    • Energy between events

    Where Cognituv fits and what you get

    • Cognituv GridCleaner coils on the large air handlers that carry a full house, with fewer service windows.
    • In-duct UV-CTreats the air serving a hall or gaming floor, added to existing ductwork with little downtime.
    • FreshFilter PROHigh-capacity treatment aimed at odors and VOCs, for spaces that outgrow in-room units.
    • Cognituv Connect: air qualityCO₂ and particulates show how the air holds up as a room fills, and how fast it recovers.
    • Cognituv Connect: people countingAnonymous counts at the doors, beside the air readings, show what a full hall does to its air.
    • Cognituv Connect: energyShows what the building draws between events, when the halls are empty.
    Typical systems
    Central air handlers · VAV · Dedicated outdoor-air systems
    Codes and standards
    IBC groups to screen
    A-1 (Assembly: performance and cinema) · A-2 (Assembly: dining, drinking and casino gaming) · A-3 (Assembly: other assembly)

    Plan sensors for this facility

Identify · Apply · Verify™

How a project runs.

  1. Identify

    Room sensors and guest complaints show which rooms and units are the problem.

  2. Apply

    FreshFilter or Overwatch dropped into existing equipment between turns.

  3. Verify

    Room air quality keeps reporting into Cognituv Connect, so you can see each room stay fresh.

AIR QUALITY · BY ZONETarget rangeTreatment on

Where we work: Full-service hotels, Select-service and extended stay, Resorts, Multifamily and senior living, Restaurants and kitchens and Fitness and spa.

Codes and standards

The references to check, each linked to its publisher.

The list comes from Cognituv’s facility and code library, reviewed September 2026. Publication isn’t adoption: whether a document applies, and which edition, depends on your jurisdiction, its amendments and your project, and the authority having jurisdiction decides. A listing isn’t a compliance finding for your facility, and doesn’t mean any product, Cognituv’s included, is certified to it.

See what the data says about your facility.

Start with a no-cost assessment: a call with an engineer and a written recommendation. When you want the data first, Cognituv Connect measures your own equipment, scoped and quoted for your site.

Prefer to talk? Call 1-888-580-8738

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