HEPA-filtered Collection Units
HEPA-filtered Collection Units | Duct Cleaning | Heating and Air Conditioning | Knoxville
Breathe easier, Knoxville! HEP Heating & Air Conditioning harnesses powerful HEPA-filtered collection units that capture 99.97% of dust, pollen, and pet dander right at the source, instead of allowing contaminants to recirculate through your home. By pairing this hospital-grade filtration with our experienced technicians and state-of-the-art negative-pressure vacuums, we free your airways—and your HVAC system—from the grime that drives up energy bills and worsens allergies.
Our duct cleaning service is thorough yet gentle on your ductwork, restoring optimal airflow while protecting your family’s health. From flexible scheduling to a tidy, shoe-cover-wearing crew, every detail is designed for your comfort and peace of mind. Call HEP today and discover why neighbors across Knoxville trust us to keep their indoor air fresh, their systems efficient, and their homes feeling like new.
FAQs
What makes your HEPA-filtered collection units different from standard duct-cleaning equipment?
Our Knoxville team uses negative-pressure vacuums fitted with hospital-grade HEPA filters that capture 99.97% of particles down to 0.3 microns. Unlike traditional truck-mount systems that exhaust outdoors, our portable HEPA units trap debris, pollen, mold spores, and fine dust inside a sealed collection chamber, preventing re-contamination of your home or the neighborhood air.
How does the duct-cleaning process work from start to finish?
1) Inspection: We begin with video-scope imaging to assess dust, microbial growth, and blockages. 2) Containment: Supply and return registers are sealed so dislodged debris flows only toward our HEPA vacuum. 3) Agitation: Pneumatic whips and soft-bristle brushes scrub the inside of each duct run, dislodging buildup without harming metal or flexible ducts. 4) Extraction: The negative-pressure HEPA unit pulls loosened contaminants into a multi-stage filter stack. 5) Sanitizing (optional): We fog an EPA-registered antimicrobial throughout the system. 6) Post-inspection: A second camera sweep verifies cleanliness, and we provide before-and-after footage.
How often should Knoxville homeowners schedule duct cleaning?
For most households, the National Air Duct Cleaners Association (NADCA) recommends every 3–5 years. In Knoxville’s humid climate—where mold and pollen levels run high—cleaning every 2–3 years is wise, especially if you have pets, allergy sufferers, or have completed remodeling work that produced extra dust.
Will duct cleaning help with allergies and indoor air quality?
Yes. By removing accumulated dust, pet dander, pollen, and mold spores, our HEPA-filtered process reduces airborne triggers that circulate each time your HVAC system runs. Many clients report fewer allergy flare-ups, less household dust, and improved HVAC airflow within days of service.
How long does the service take and will I need to leave my home?
A typical single-zone Knoxville home (2,000–3,000 sq ft) takes 3–5 hours. Larger or multi-system properties may require a full day. Because our equipment is quiet and sealed, you can remain in the home; we only ask that pets and small children stay clear of work areas for safety.
What does duct cleaning cost and are there local rebates?
Pricing is based on the number of HVAC systems, supply/return registers, and accessibility. In Knoxville, most homes fall between $450 and $750, including HEPA vacuuming, agitation, and sanitizer. TVA and KUB occasionally offer energy-efficiency incentives that can offset part of the service—ask us for current rebate information, and we’ll help with the paperwork.