HVAC · UV AIR PURIFIERS
UV-C air sterilization, true HEPA filtration, and high-MERV filter upgrades — installed directly into your existing furnace and ductwork. An in-duct UV-C lamp mounted at the evaporator coil kills mold, bacteria, and viruses as conditioned air passes by, and a MERV-13 or HEPA media cabinet catches the particles a 1-inch throwaway filter never could. Real relief for households with allergies, asthma, immune-compromised family members, or anyone who's just tired of dusty, stale indoor air. We'll tell you honestly what UV does and doesn't do, and design a system that actually improves the air you breathe.
From a single in-duct UV-C lamp to a whole-home HEPA cabinet with a MERV-16 pre-filter, Caspian installs the air-quality equipment that actually does something measurable — and skips the gimmicks that don't.
High-output UV-C lamp mounted directly above the evaporator coil. Kills mold and bacteria on the coil surface where damp conditions otherwise grow biofilm — and sterilizes airborne pathogens passing the lamp.
True HEPA filtration — 99.97% of particles at 0.3 microns — installed as a bypass cabinet on your existing furnace. The gold standard for allergy, asthma, and immune-compromised households.
Deep-pleat 4- or 5-inch media filters that capture fine particles, pollen, smoke, and pet dander — without strangling the airflow the way a high-MERV 1-inch filter would.
Washable, polarized-plate cleaners that electrostatically charge and trap fine particles. Lower running cost than a HEPA cabinet — you wash the plates instead of buying filters.
Active PCO (photocatalytic oxidation) plus bipolar ionization systems that work throughout the duct stream and out into living spaces — for VOCs, odours, and surface pathogens.
UV-C lamps lose intensity after 9,000–12,000 hours — about one year of run time. We swap bulbs, replace HEPA and MERV media, and verify the system is still doing its job.
UV gets oversold. Before you spend a dollar, here's what an in-duct UV-C lamp actually does — and what it doesn't.
UV-C in-duct lamps target the evaporator coil first and foremost. A coil in a humid AC system is wet for most of the cooling season, and that's exactly where mold and bacterial biofilm like to grow. A UV-C lamp mounted above the coil keeps it sterile — this is the real, measurable, important job UV does in a residential system.
UV-C also sterilizes airborne pathogens as they pass the lamp. Contact time is limited — air moves through the duct in a fraction of a second — so think 60–90% reduction over many passes, not a single-pass kill. Over a day of recirculation, the cumulative effect is significant for bacteria and viruses.
UV does NOT replace a good filter. It complements MERV-13 or HEPA filtration, which is what physically captures the dust, pollen, dander, and particulate in the first place. UV sterilizes; filters capture. You want both — and if you can only do one, do the filter.
It also doesn't kill mold that's already growing in walls, attics, or basements. UV only acts on surfaces it can shine on. If you have visible mold or a damp-building problem, that's a remediation job — not an air-quality install. We'll tell you that straight, and recommend you handle the source first.
UV and high-grade filtration aren't for everyone. Here are the households where the investment delivers genuine, day-to-day improvement.
01 · ALLERGIES
A MERV-13 or HEPA filter upgrade plus a UV-C lamp at the coil is the standard prescription. Filter captures the pollen, dander, and dust; UV stops mold growth that would otherwise off-gas spores into the airstream.
02 · IMMUNE-COMPROMISED
Full HEPA cabinet plus UV-C — the most aggressive residential setup. For households with chemotherapy patients, transplant recipients, or chronic respiratory conditions where airborne pathogen load matters.
03 · DAMP HOMES
UV-C at the coil prevents the biofilm from re-establishing after remediation. We pair it with proper humidity control — UV won't fix a humidity problem, but it'll keep the coil from becoming a mold reservoir again.
04 · CLEAN-AIR FOCUSED
If you just want better indoor air, you can absolutely have it — but understand the limits, and pay only for the equipment that does measurable work. We'll quote what helps, and skip the gimmicks.
GET A QUOTE
Tell us about the people in the home, what you're trying to solve — allergies, asthma, mold concerns, immune-compromised family member — and the equipment you're running. We'll spec the right combination of UV and filtration for your situation, and we'll tell you straight if UV isn't what you actually need.