The Difference a Clean Coil Makes
Is your AC system burning through more energy than it used to?
Are your monthly bills climbing with no clear reason why?
Does the air in your home feel like it is never quite fresh?
In 90 days, BioShieldUV™ takes care of it completely and the difference is visible.
What BioShieldUV™ promises within 90 days.
A visibly cleaner coil
Within 90 days, biological growth on your evaporator coil will visibly diminish or disappear.
ASHRAE's field research documented visible improvement in as little as 30 days.
Better airflow
Biofilm creates resistance & as it clears, your system breathes easier and so does your home.
A hospital in Norman, Oklahoma recorded a 75% reduction in pressure drop within 39 days.
Lower energy bills
Biofilm insulates your coil and forces it to work harder. Once it clears, your system runs shorter cycles and consumes less energy.
The University of Michigan Medical Center recorded a 15.6% improvement in heat transfer within seven weeks.
Built to the highest safety standards in the industry
0 ozone production
Safe for continuous use in occupied homes and around children.
UL certified
Independently tested and listed by Underwriters Laboratories for electrical safety.
Fire-safe
Rated for installation inside active HVAC systems without fire risk.
Meets US safety benchmarks
Compliant with federal standards for indoor air quality devices.
BioShieldUV™ is the only UV-C company that Guarantees Results
| Company | Results guarantee? |
|---|---|
| Fresh-Aire UV | Hardware warranty only |
| Steril-Aire | No financial guarantee |
| Sanuvox | No |
| CureUV | Explicitly excludes UV lamps |
| VEVOR / Odor Stop | Standard return only |
| BioShieldUV™ | Full refund if you don't see results |
Terms and conditions
To qualify:
Photograph your coil within 14 days of installing, run the unit 24/7 with direct line-of-sight to the coil, and submit your refund request within 100 days of purchase.
What is covered:
Full refund of the product price and shipping, across all BioShieldUV™ Apxshield (Classic) and Magshield (Magnetic) systems. You keep the unit as well.
What is not covered:
Coils where contamination is dust or mineral deposits, systems not operated continuously or without proper positioning, and replacement bulbs or unauthorized purchases.
How to claim your Refund
Email support@bioshielduv.com with your before and after photos and your order number. We will issue a full refund within 10 business days & you keep the unit.
Request a RefundShop BioShieldUV™ Systems
Every BioShieldUV™ system comes with the Clean Coil Promise built in. No registration, no forms, no conditions to meet before you buy. Purchase, install, and see what your coil looks like in 90 days.
Your replacement bulb, delivered before you need it.
Your UV-C bulb needs replacing every 10 months to stay effective. Get it shipped automatically at a 15% discount, right on schedule. Your coil stays clean and your system stays at full strength.
Join Guardian ClubIMPORTANT NOTICES
Disclaimers
Educational Disclaimer
This information is provided for educational purposes only. BioShieldUV Inc. is a manufacturer and does not provide installation services. Customers are responsible for hiring qualified, licensed HVAC professionals for all installation questions, guidance, and services.
No Pesticidal Claims
BioShieldUV Inc. makes no pesticidal claims regarding our products. We do not claim our products disinfect air, kill specific pathogens, prevent disease, or provide any health benefits. The Clean Coil Promise covers observable physical improvements to HVAC system components — not health outcomes. Any references to research are from third-party sources and are for educational purposes only.
Ozone Safety
BioShieldUV systems are independently tested at 0.014 ppm ozone production, well below the EPA and CARB safety limit of 0.05 ppm.



