Many indoor spaces contain hidden areas where bacteria ³ can collect—under furniture, behind appliances, inside vents and in corners with limited airflow. These spots are difficult to reach through normal cleaning and can continue releasing pollutants into your home. This is where PCO purification inside an ionic air purifier, whole home air purifier or whole house air purifier becomes valuable. PCO purification helps reduce airborne and surface-level bacteria ³ even in areas conventional cleaning tools cannot reach.

How Bacteria ³ Build Up in Hidden Indoor Spaces

Dust, moisture and organic materials accumulate easily in tight and undisturbed areas. These pockets give bacteria ³ the ideal conditions to remain intact over time. Common spots include:

• Gaps behind refrigerators and laundry machines
• Corners where air circulation is low
• Small cracks in flooring
• Tight spaces underneath beds and sofas
• Vents, intakes and HVAC edges
• Closets and storage zones with stagnant air

As natural airflow moves through the home, these pollutants can shift into the breathing zone.

Why Traditional Cleaning Often Misses These Areas

Direct-contact cleaning is limited by how far a cloth, vacuum or spray can reach. Large furniture and built-ins often block access to hidden spaces. Even when surfaces are cleaned, airborne bacteria ³ can quickly settle again.

This is where PCO purification plays an important role.

How PCO Purification Works Inside an Ionic Air Purifier

PCO purification uses a catalyst activated by UV light to generate ions that travel freely throughout the room. These ions reach into corners, narrow spaces and high or low areas that tend to go untouched.

Homeowners often use this technology in an ionic air purifier or within a whole house air purifier setup to ensure purification extends throughout the entire space. As ions move with natural airflow, they spread into:

• Tight spaces where dust gathers
• High corners and low baseboard edges
• Gaps behind furniture
• Narrow areas in closets or storage rooms
• Around vents and inside areas with stagnant air

This is a major advantage over solutions that only filter air passing directly through the device.

Independent Lab Studies: PCO Purification Reduces Bacteria ³ in the Air and on Surfaces

Puraclenz PCO technology has been evaluated in EPA-compliant third-party laboratories for both airborne and surface-level bacteria ³. These studies demonstrate how PCO ions travel into the same hard-to-reach areas discussed above. You can learn more about bacteria ³ pollutants and additional testing data on our dedicated Bacteria page: Puraclenz Bacteria Information

Fights Bacteria ³ Mid-Air

99.7% effective against MSRE bacteria ³ in the air.

Methicillin-Resistant Staphylococcus epidermidis (MSRE) is a recognized surrogate for:

• MRSA
• Streptococcus pneumoniae
• Streptococcus pyogenes

These pollutants are associated with severe indoor contamination risks.

Test details and report: https://puraclenz.com/pages/mold-bacteria-aerosol-lab-report

The study confirms that PCO purification helps reduce airborne bacterial pollutants across the testing chamber, demonstrating the ability of ions to travel through open air and into areas that traditional air filters cannot directly reach.

Deactivates Bacteria ³ on Surfaces

95.7% effective against Staph. aureus on surfaces.

Staphylococcus aureus is a surrogate for:

• MRSA
• Streptococcus pneumoniae
• Streptococcus pyogenes

During the study, agar plates containing live bacteria ³ were placed more than eight feet away from the device and left in position for eight hours—showing how PCO ions reach distant surfaces, including hidden areas where hands and cleaning tools cannot easily reach.

Test details and report: https://puraclenz.com/pages/bacteria-surface-lab-report

How PCO Purification Reaches Hard-to-Clean Areas Throughout the Home

Because PCO ions move freely through the room, they naturally enter the same hidden areas where bacteria ³ tend to accumulate. Whether used as a standalone ionic air purifier or integrated into a whole home air purifier setup, PCO purification works continuously as air moves around the home.

Over time, homeowners typically notice purification benefits in:

• Low-circulation rooms
• Basements and storage areas
• Laundry rooms with warm, humid air
• Kitchens and bathrooms
• Bedrooms with tight spaces around furniture
• Large rooms where pollutants collect behind heavy objects

Continuous ion production supports reduction of airborne and surface-level bacterial pollutants across the entire room, not just in the direct line of airflow.

Why Hard-to-Reach Areas Matter for Whole-Room Purification

Even small pockets of bacteria ³ can influence overall indoor air quality. As air circulates, pollutants can move to other parts of the house. A whole house air purifier or whole home air purifier using PCO purification helps ensure these overlooked areas are actively treated.

PCO ions support cleaner indoor conditions by reaching deep into the spaces most homeowners can’t clean regularly, helping reduce bacterial pollutants both in mid-air and on surfaces.