Air Scrubber Installation & Maintenance
Bay Area's #1 Choice

What Is an Air Scrubber and What Does It Remove From Your Home’s Air?

An air scrubber is a whole-home purification device installed directly into the HVAC ductwork that treats air actively as it circulates, rather than only capturing particles that happen to pass through a filter. It targets bacteria, mold spores, viruses, wildfire smoke particles, VOCs, and odors that a standard filter alone can’t neutralize.

How an Air Scrubber Works: ActivePure and UV-Based Technologies

Our air scrubber systems combine a pre-filter to capture large debris and dust, a HEPA filter rated H13 or higher to trap 99.97% of particles down to 0.3 microns, an activated carbon filter to remove odors, VOCs, and smoke, and a UV light or titanium rod stage that neutralizes bacteria, viruses, and mold spores as air passes through. Technologies like ActivePure, used in systems such as Air Scrubber Plus, install directly into the existing ductwork and send purifying agents into the living space rather than waiting for contaminated air to return to the unit.

Air Scrubber vs. Air Filter vs. Air Purifier: Key Differences

A standard air filter is passive — it only captures particles that physically pass through it, so anything settled on surfaces or lingering in a room the air hasn’t cycled through yet goes untreated. An air scrubber is active purification: it sends UV light, water-based purifying agents, or ionized particles out into the ductwork and living space, treating air and surfaces beyond what a filter alone reaches, which is the main distinction between an air scrubber and a standalone portable air purifier.

Signs Your Home Would Benefit From Air Scrubber Installation

A home benefits from an air scrubber when standard filtration isn’t keeping up with smoke, odor, allergy, or mold issues despite regular filter changes. This is especially common during wildfire season or in homes with ongoing musty odors, pet dander, or a household member sensitive to airborne allergens.

Indoor Air Quality Issues Common in Bay Area Homes

Seasonal wildfire smoke events regularly push AQI into hazardous ranges across San Jose and Cupertino, and standard filtration struggles to keep pace with the fine particulate load those events bring indoors. Spring oak and eucalyptus pollen adds another layer of allergen exposure, and homes built during the 1960s through ’80s across the South Bay often have poor natural ventilation, which traps whatever gets inside rather than allowing it to dissipate.

Who Benefits Most From an Air Scrubber

Households with allergy or asthma sufferers, homes with pets, anyone dealing with musty or mold-related odors, and homeowners in wildfire-prone areas of Los Gatos or Saratoga see the most noticeable benefit from an air scrubber. It’s also worth considering after a renovation, since fresh paint, adhesives, and new materials release VOCs that an activated carbon stage is specifically built to address.

Air Scrubber Installation & Maintenance: How the Process Works

Installation involves mounting the air scrubber unit directly into the home’s existing HVAC ductwork so it treats all circulating air, or building it into a new HVAC system from the start. Ongoing maintenance involves periodic filter and UV lamp or titanium rod replacement to keep the system performing at its rated capacity.

What Happens During Installation

We assess the home’s existing ductwork and HVAC system to confirm compatibility, then mount the air scrubber unit inline so all air moving through the system passes through the pre-filter, HEPA filter, activated carbon stage, and UV or titanium rod treatment before returning to the living space. For a new HVAC installation in Belmont or Foster City, we build the air scrubber into the system design from the outset rather than retrofitting it later.

Ongoing Maintenance: What the Service Visit Includes

Maintenance visits include replacing the pre-filter and HEPA filter based on household usage and air quality conditions, checking the activated carbon filter’s odor-removal capacity, and replacing the UV lamp or titanium rod once it reaches the end of its rated output life, since these components lose effectiveness gradually rather than failing outright. We check all of this during the same visit rather than requiring separate appointments for each component.

Air Scrubber Installation & Maintenance Cost in the Bay Area

Air scrubber installation and maintenance cost depends on the system’s technology, the number of filtration and purification stages included, and whether it’s a retrofit into existing ductwork or part of a new HVAC installation. A retrofit into accessible ductwork typically costs less than one requiring modification to reach a less accessible duct run.

Factors That Affect the Final Price

Price is driven by the specific air scrubber technology selected, whether the ductwork is easily accessible or requires modification, and the ongoing cost of replacement filters, UV lamps, or titanium rods over time. Homes in Sunnyvale and Mountain View with older, harder-to-access ductwork sometimes require more installation time than a home with a straightforward duct layout.

Installation as Part of an HVAC Tune-Up or New System

Air scrubber installation is often bundled with an HVAC tune-up or a new system install, since the technician is already working in the ductwork and can mount the unit during the same visit. Installing it alongside a new system also lets us confirm the ductwork and airflow are sized correctly around the added component from day one.

Why Bay Area Homeowners Choose United HVAC, Plumbing & Electrical for Air Scrubber Services

Homeowners choose us because we install air scrubber systems into the ductwork correctly the first time and maintain every stage of the system, not just the filter that’s easiest to reach. We recommend a system based on the home’s actual air quality issues rather than a one-size-fits-all package.

Licensed, Insured, and Local

Our technicians are weekly trained for HVAC work throughout the Bay Area and carry insurance that covers the home during ductwork modification needed to install the unit. That matters because an air scrubber install involves working directly inside the system that circulates air through the entire house.

25+ Years Improving Bay Area Indoor Air Quality

Our key technicians spent more than 25 years on HVAC and heat pump-related work across San Jose, Palo Alto, Milpitas, and the surrounding cities, which includes installing and maintaining air scrubber systems for homeowners dealing with wildfire smoke, allergies, and persistent odors. That experience means we can generally identify which air quality issues an air scrubber will resolve and which ones need a different approach, like duct sealing or a dehumidifier.

Same-Day Service With Upfront Flat-Rate Pricing

Most air scrubber installations and maintenance visits are completed the same day, and every job is quoted as a flat price before work begins. If a component we installed fails within the guarantee period, we return and correct it at no additional labor cost.

Dealing with wildfire smoke, persistent odors, or allergy symptoms indoors? Call United HVAC, Plumbing & Electrical at (408) 539-6936 for an air scrubber installation assessment anywhere in the Bay Area, from Campbell to Los Altos.